Noise sensitive neighbours, who'd rather listen to days of hammering and porta packs running rather then a millisecond of blast noise hahah, another great video mate, you're unbeatable!
He was obsessively concerned about the vibration and no amount of evidence to the effect of it being a non event would passify him. Thanks for watching and contributing.
If the developer had a bit of foresight he would have put drilling and basting language in the deeds. That way the first in could not screw the later buyers.
Especially when it costs him serious money. I remember Dave talking about how expensive the special grease he has to use for the plugs and feathers is, and he said today that he needs to use lots of it.
@@TrevorDennis100It is like 100€/kg or something stupid like that. Getting The big bucket is cheaper. Just full smaller can from that one. Cheap compared to darda wedges. Those 3 slabs of metal are Thousands, and are a consumable
@JanneHeino The genuine Darda grease is AU$240/500g tin! Still looking for a good substitute and it seems that the Castrol Molub - Alloy White paste T is no longer available. Thankfully the Chinese wedges and feathers are not too costly by comparison.
Blasting is awesome ... but those Hydraulic Breakers are absolutely mesmerizing!!! Between the slow creep of the rock, and the sound of it being slowing torn apart .. no words for that, just WOW!!! Thanks for sharing 🇨🇦
As a safety professional, I really appreciate the bit about wearing a full face respirator, even outdoors. Silicosis is a horrible disease and by the time you are affected, it's far too late.
For sure Brandon, there was a market vacancy in my area when I started out because my predecessor died after an un successful heart and lung transplant. It pains me a great deal when I see lots of guys in India drilling down wells with no protection at all.
Like everyone here Dave, I love watching you break rocks really fast. But there is something so satisfying about watching you break rocks really slowly and quietly with the plugs and feathers, especially the hydraulic ones. Great fun.
@@demolitiondavedrillandblast I agree Dave. This were a realy nice trip to follow. And to see the rock split slow is so satisfying. You know i like uncowerd bangs. And all this hard work. You realy deserve 5/5 Bangers 🧨🧨🧨🧨🧨 +💥 For this one! 😊
There's Dave. The hardest working man on TH-cam minding his own business when some disgruntled with the world for someone else's mistake comes over and says it'll be all Dave's fault that his house is falling apart before he even got to the job site and he will seek restitution out of his hyde. Almost causes a person to wish misfortune find him, though we know better than that and it will likely find him without our assistance. Thank you Dave for another incredible lesson on how you work magic by being even harder than the granite with your stick to it work ethic. You are an amazing soul. May God bless you that much more.Already liked and subscribed.
Great video as usual. You do a nice job of explaining and then demonstrating how you tackle a job. Not every expert can do that. "There's nothing easy about the way I'm doing it."
Cracking performance sir. Bet the neighbours were glad to see the back of your truck.👍👍👍 When you build a house on a slope on top of rocks and fail to spend the money building the correct footings your bound to suffer cracks. Aside from that. Imagine the noise made by a 7 magnitude earthquake in a granite mountain area. Terrifying. My suggestion for a new method Dave is plasma gouging. Low noise and keeps ya warm in winter.
Exactly David, skimping on foundations and building over rock without lots of extra steel. Never thought about earthquake noise in granite areas, have you witnessed this?? Lots of interesting other issues there like electromagnetic emissions, earthquake lights etc. I'll have a look into plasma gouging.
Hello sir, watched this video with great interest. I'm not a demolition guy, but an older mason so I can relate. At the end of the video you mention it's not easy and you would be open to any ideas that could help the process. It occured to me that it's a lot like quarrying stone. If you started the job at the lowest point and began by removing material to create a space then you could split your ledge toward that space. The stone would have somewhere to go, it wouldn't just be squeezing against itself. If the finished space could be emptied as you went to the desired depth it should require less holes and your cracks would run deeper. You could also get some nice usable blocks as a by product. Thats the first time I've seen those hydraulic feather and wedge drivers . I was just gifted a 60"x70"x21" pink granite block and my next project will be to build a moon gate next to our koi pond. Greetings from CT, USA.⚒
Great to hear the rock ''groaning'' as the hydraulics get to work. I guess you could label that job as a bit of a laborious PITA! Kudos for great work Dave - hope the $ return was adequate! Your equipment inventory must represent a huge investment, plus replacing damaged stuff.
Always replacing stuff Chris, the toll for this job was Two broken drill rods. One wedge bent over on the end (100% my fault) and one set of feathers and wedge bent like a banana when the rock moved in an unfriendly way.
@@demolitiondavedrillandblastou should alternate The way you push, The feather stretches on The front when splitting, so turning The Tool 180° and doing few holes that way and keep alternating. And have some angle on The holes.
For some reason I really like the crunching sound the hydraulic crackers make as the rock starts to give way. Wouldn't want to stand too close though, lest I get hit by shards spalling off the surface.
Amazing work! That grout splitting is incredible. It seems to me that the intelligent approach by the neighbors would have been to promise not to complain or call the authorities but at the end they wanted a big and several smaller rocks placed in their yards…….would have made for spectacular landscaping for no expense!
them air legs where really tricky for the short guys when doing a high hole an that's not a sound you like to here working in a tunnel all that cracking brings back bad memory's
People are funny, so they complain about using explosives (when explosives were probably used when the lot that they have was developed) but would rather hear a drill drilling 3X as many holes, and 4X as many hours of equipment running to get the rock out without explosives. I hate the Karens and the "not in my backyard" attitude. That Job had a large amount of work for you! I have used small squib charges on the Potato Chips, very little noise. But the Feathers seemed to work well seeing that it was so hard and brittle.
Ironic thing is that complainant comes from the rockiest site in the street and I well remember when competitors blasted the site about 20 years ago, they were blasting there for months. (They don't work fast).
There something very satisfying watching the battle between the rock and hydraulic power. Glad you had a good talking to that person giving short holes.😉 The different hardness of rock is surprising. Thanks for the video. Cheers
@@demolitiondavedrillandblastyour video was suggested recently because I watch a lot of heavy equipment content. I've become fascinated with each new release you have. Humans > Nature almost every time, given we have time to think it out. Nature sometimes surprises us like with the recent events in western Japan.
I hope that the site owner approached the neighbour to pay half your bill for the extended time and effort that was involved in not using explosives. A good job Dave under difficult circumstances.
It is really amazing how you do this and the different techniques that you have to do the job. I really enjoy watching you breaking these rocks and granite. Keep making these videos. Sam from the US
GREAT VIDEO, THANK YOU, DAVEY!. I CANNOT BUT IMAGINE ALL THE GIGANTIC MEGALITHIC CONSTRUCTS AROUND THIS AND OTHER PLANETS. THEY HAD TO DO THE EXACT OPPOSITE OF WHAT YOU ARE DOING!
As a rock worker I have a pretty good handle on how difficult they can be with all of the right modern tools, how did they manage with only copper tools??
Awesome video, Dave! Damn, what a hard slow slog this job must have been and then there was the neighbour…. Love the way you go about it and the respect for your tools is great to see. Hope the next job is a little easier for you. Thanks again.
Terrific result Dave and definitely worth the effort of which there was plenty. The Developer must have been really happy to eventually see that granite gone.
Thank you Dave. They called in the right man for this tough job. You make the impossible posssible. Those hydraulic splitters were a really good investment.
Great job Dave! That second piece was quite the massive bit of granite! Well done breaking that up, you had a good plan. The splitters are a work out for sure, but you've never been scared of a good time! Cheers bud, I'm glad this one is over for you!
thank you Mr D for sharing this i enjoyed it very much - its nice to see what else you do aside from sending rocks - a happy site manager and calm for the mad neighbor
Your such an expert ! I’ve watched a lot of your videos . I appreciate that you take the time to explain what your doing and why as we are mostly clueless ! I’m always impressed that you do all of this by yourself and you don’t even have somebody to lend a hand! Keep up the cool work!😊
@@demolitiondavedrillandblast I know the feeling I’ve been doing Plumbing for 17 years and I have help every once in a while but I mainly have to go at it alone . People just don’t want to work in the trades any more , or work hard for there paycheck . They all want a cushy desk job that they don’t have to do any real work and just complain that there job is to hard and they don’t get paid enough . Smh what is this world coming to brother ?
I do hope the person who was threatening to sue enjoyed the many days of noise and vibration that the extra drilling & breaking caused. I'm sure you could and would have come up with a blasting plan that would have caused minimum vibration and got the job done in a fraction of the time!
I could have easily done it in a compliant manor but he was also a determined that he would attempt to claim against my insurance (for existing damage - he was a bit nutty). Obviously he would not succeed, however when I go to my insurance with such an issue the first thing they want before they will act on my behalf is $10,000 excess from me. Just not worth pushing the issue.
Wow! Much respect, that was a lot of hand drilling. I did a little when I was young and everything about it hurt. A lot of folks don't realize how hard a rock drill is on your joints and body. Honestly, the only thing that could have possibly made it marginally easier would have been to use a mini excavator with a small drill attachment. I'm not sure such an attachment in the size you needed exists , but I would imagine it would cost much more to do the job and you would be getting on and off the machine consistently if working solo. Great Job!
i use to drill 13 to 15 holes with a jack leg a day 5 days a week driving tunnel and after a few weeks my hands would burn at night.i had nerve damage that took about a year to heal after i quit mining.
Being cautious on liabilities on preexisting damage is a great idea.and I wouldnt doubt damage claims would come flying in the door. Unless it was at my house, , in which case I provide beer after work... I wish you were close. My friends and i Discovered a prehistoric river bed< unworked in Utah, united states,> and this is covered with a extremely hard top layer called " ironcap, the rock structure is called " gossen"and its iocated being in a isolated part of the desert. Thise ancient untouched old riverbeds in this area are notorious for placer gold content and the area... There is so much legal paperwork I might never get clearance to blast exploratory holes so I have to keep prospecting...elsewhere.. Mining is extremely hard work, even working surface placer gold deposits... and of course you dont know if there is gold there till you look.
That seemed like a pain in the butt job, I like the hydraulic splitters and the plug and feathers. Too bad about that neighbor . Great job and a great video.
MM77 Approved 👍🏼👍🏼………………………………………………….I’m willing to bet he wasn’t complaining about noise when HIS property was being developed!!! You KNOW I like seeing rocks fly, but those hydraulic splitters………………………there’s something oddly satisfying about watching them.
Ironic thing is that complainant comes from the rockiest site in the street and I well remember when competitors blasted the site about 20 years ago, they were blasting there for months. (They don't work fast).
It would be cool if they used the granite that was broken out to make a wall or something on the property! Great video, this looks like a very enjoyable line of work.
23:06 sounds like something is about to implode, or a sinkhole is opening up! Creepy sound, that sound would keep me up at night, when I did septic systems, and such the Lazer level would keep me up, I'd heat it when I dozed off to sleep, I'd hear beep , beep , beeeeep and nearly jump up, it drove me insane about 4 nights a week, the other three I was either too tired to dream, or too drunk! Even 5-6 months later I'd hear it, crazy how the mind works!
Dave it’s about 3rd time I have watched this video and it still interesting. I like the way you explain step by step and the video work is very good. Thinking about how you could do it better have thought about a light sabre or ear plugs for the neighbour. Look forward to your new video’s.
i really love these videos. that granite is tuff stuff !!! on the internet they got giant hydraulic splitters that hang from the excavator boom by chain. but they need giant 4 inch holes !!! i was thinking theres got to be a way to make a portable drill press type machine that could drill with large diamond tip core bits. drilling with core bits is quiet and not so hard on the back. then the excavator could come in after with giant splitter and bust it up. -not fun like blasting tho !!!
Hey, thanks for tuning in. The machine that you dream of already exists however core drilling rock does have some difficulties and disadvantageous compared to the normal hammer drilling with a big drill rig. First problem is extracting the core, this is no problem when core drilling concrete, but rock often has horizontal joints and bedding planes that cause the rock core to snap off half way, it can be difficult and time consuming to extract the remainder. Second issue is that the ware rate is very high when drilling rock compared to concrete, hence it is expensive. Third issue is that coring is very, very slow compared to a good hydraulic hammer drill rig. th-cam.com/video/2krfrcm0cfA/w-d-xo.htmlsi=Jnomfv-o71YHvg9d&t=30
I could listen to hydraulics cracking rock all day.... but its less 'colorful' n explosive. Good to see ya mate. I been doing some 1200 sq m slabs lately.... tired
Hi Dave, Good seeing you again! "very hard rock" was a bit of an under statement! Sorry to hear the neighbor was such a jerk! How many drill bits did you use? Thank goodness for the Aussie Biscuit mix to save the day! Did the neighbor complain about all the jackhammering, too? You really earned a day off after this one! BIG thumbs up!! Good safety advice, too!! How's Blaster Girl? Take Care, Stay safe, Jim
Broke 2 drill rods on this one, also bent the end over on one wedge and bent another set like a banana when the rock moved in an unfriendly way. Blaster Girl is doing well in her own business.
When you quote, chat to the neighbor to find out their thought. If they have issues, either decline to job or include budget for them to have a holiday whilst you get the job done.
Nice job Dave - ''precious'' neighbours can be a real PITA, .............. just remember to charge PITA prices, ................keep you a troshing and take care.
Another great job, by DD. I hope you were compensated adequately. I think I would have charged in the $20-30,000 US dollar range for that job. I have had to do a job with similar neighbors in similar faulty construction projects, so know what you are up against. Most of these people don't want new houses in front of there view. That is the biggest, behind the scenes reason, for no blasting. I hope the additional noise and time of noise, was enjoyed by the bad neighbors.I hope you direct the drill exhaust toward their house, whenever possible. Only down side to that, is here in the States, we would have to erect acoustic barriers. Coming soon to Australia.
@@demolitiondavedrillandblast I don't have a channel. Too busy blowing stuff up to film professionally. Customers don't want to see me dicking around with cameras, for what I charge.
Nice to see your video Dave I am sure this job would have been over and done in a week if you had all your tools at your disposal. Some folks get a bun in the oven and really can't let go! They can only see their perspective and we all have to step around their detritus.
100%, I said to the guy that I can go through the blast design and explain all of the numbers for you, we can do a small trial blast and measure the results etc.... Would not budge.
If neighbours whinge about the noise your making, just hire a fire engine and leave it running with the siren going. Will take their minds right of anything your doing.
In Melbourne the Three main ones that I work with are this one - Granodorite type I and Basalt and Rhyodacite (harder again!). There is also a few patches of sandstone and lots of mudstone - most of which just get hammered these days. The softer rocks also get blasted from time to time when there is no machine access.
"nothing easy about the way I'm doing it..." Nothing better than the way you choose do it on every job, it's up to you to decide based on other folks' noise toleration and safety.
Those hydraulic splitters are the ducks nuts. The force they exert is mind boggling. With 8,500 psi on a 3 inch ram, you have around 26 tonnes of force. Multiply that by the taper of the plug, ( and I got no idea how to do that) and the forces generated are almost unstoppable.
Gotta be a bit careful. Steep tapers have a lot of passive friction to the point that morse tapers at like 1.5° become self locking, friction is greater than the active forces. So even if the trigonometry says that youll get - say - 100 times force multiplication, it'll be a good bit less in reality
No idea if this would make any difference. What would happen if you turned those hydrologic splitters 90 degrees in the same hole. Will it make the split bigger? Or is a split a split and the digger with the hammer will finish it off anyway. Because you already have a hole, the splitter is already there, just needs another cycle of the piston.
I held off in the early part of the job because of bad access - there was no driveway, just a steep hill to climb up from the street and I could not get the very heavy hydraulic power pack up there. Later I convinced him to cut a drive way in.
Hi Dave, I was wondering if you use a special grease for the hydraulic wedges, or just the cheapest you can get hold of? On similar thoughts, are there any types of lubricant that although more expensive give much better results?
Yes, extremely important, the grease is a very thick lithium soap base compound with Titanium Dioxide and some other stuff, works very well and cost $480/Kg!!!! All other grease does not work too well and have had expensive failures where plugs and feathers friction weld themselves together!
@demolitiondavedrillandblast Thanks Dave. I suspected that might be the case. Adds quite an additional cost to splitting a hole when you use the hydraulics. Something that customers will never be able to get their heads around. I can only think of Kluber in the UK who can charge that much for specialist greases.
Jackleg is the best friend at least you’re well punched, you have nice machine for this task! Just the cracking granite sound is the best sound ever, but overall its seem less trouble to use 3/4” bit and pull down 50gr detcord and bury all 😬
Oh.. yeah, music to my ears also, would have been very quick and strait forward to fire the whole lot with cord and be done with it. Thanks for watching.
Ah... good question Steve. there are several reasons why you might use the millisecond delay technique. First and foremost it is used to control the blast vibration, to illustrate if I were to fire a 20 hole trench shot sequentially with say a 25ms delay between each of the holes, the resultant ground vibration would be a mild Brrrrrrrt.., spread over half a second and probably nobody would notice. Alternately if I were to save a bit of money and hook it up so that all of the holes fired at exactly the same instant the ground vibration would be one big jolt that makes the neighbors cups rattle in the cupboard and pictures fall of the wall etc. and every body want to pull my arms off. Second good reason to use the millisecond delay technique is that you get much much better rock fragmentation for the same number of holes and charge mass per hole than you would if you fire all of the holes together like a det cord shot. If you check out some of my videos of works on forest roads you will see typically large blocky pieces of rock as the product of det cord shots. Not a problem in this case because vibration is not and issue and usually very big machinery is available to manage the big pieces. Thanks for watching.
Have you thought about setting up some long dowels on blocks making a grid, to show the movement of the rock when the dowels fall, or, have dowels in a hole standing ear straight, then show any angle it may have when done cracking ... It could make a cool video!
Yeah... when I'm editing I can grab the time line slider and back and fourth very quickly and see all the rock bulge up. As for drilling extra hole to put dowels in... you are welcome to come and give this a try James.
@@demolitiondavedrillandblast That's wise but I mean I hadn't seen them in a video in a while and I wasn't sure if you still owned them or if they were a demo from the maker or something.
Thanks for the video post Dave. I have an off subject Question here.There is a fellow here in the U.S. that wants to reforest some desert land in a very remote area of South Texas. He is a tech guy who has never drove a pick-up truck before so let's say he is a little green at moving earth. He has to hire a skidder/bobcat to dig about three or four thousand holes maybe 2 meters across and 1.5 deep these will act as catch basins for rain storms that will hold the water and allow it to soak slowly into the ground. He is having trouble moving in equipment fuel etc, I think a good blasting guy could come in and do the job with probably just blasting caps as it is basically just a sand and gravel mix with rocks no bigger than a small car tire.What is your opinion if you don't mind my asking. 40 years ago my mate and I did the blasting for a large resort development since we had to run all the utilities under ground. We did the a lot of blasts but the truth is its a miracle we are still alive because we sure weren't qualified . Btw. he has a youtube channel its called Shaun overton /DUSTUPS where he explains his goal.Thanks stay safe.
You could just auger some holes in the ground and put a few Kg, of ANFO in each hole and blast some craters, would not be expensive. Ask a local blasting guy.
For sure, you wonder if the jobs was too difficult for the first guy or he got kicked off or he left because of non payment etc. In this case he fired one shot and had a noisy run in with the neighbor and decided to chuck it in.
Ironic thing is that complainant comes from the rockiest site in the street and I well remember when competitors blasted the site about 20 years ago, they were blasting there for months. (They don't work fast).
slow and steady work with a lot of eat, rinse and repeat. just wondering if next thought it may have been better to put up with a few bangs then listen to the rock hammer all day
The neighbor was busting to make a damages claim on me if I blasted, he would loose but I would still have to pay my insurance excess which is not small.
Sir, I need some help sir .As you as possible you may you will help to me i thinking sir .Is their any chemicals acid to dissolve or soluble the rocks and stones with chemicals. Is their any solution please answer me
My C-12 Darda is a 4" piston at 10,000 psi with a 17/1 incline on the feathers and wedges = 325 tons of splitting force. Hard granite like that, may be in the 1- 4000 lb. tensile range. 325 tons = 650,000 psi. Assuming high end, 650,000 divided by 4000 = 162.5 square inches. This is theoretical. I have broken a hard 8 ' diameter granite boulder on the surface, with 1 -1 3/4" X 30" hole. Being tied up in the ground is a whole other ball game. Good Dynamite ,or cast Pentalite produces around 200 kilobars ( 2.8 million) pounds of pressure, hence it's effectiveness.
@markmayer2029 I would love to do some side by side comparisons of a real Darda compared to my Chinese copy, I see guys like Yuri P on Instagram breaking some monster rocks that mine would just not look at. ( instagram.com/valunovnet/ )Pentalite always wins! Post some video on your channel Mark.
Should be nice landscaping stones / retaining walls etc ,all these hydraulic craced" square blocks" .. Also why are the rock being blasted all the way out to the fense? Is the building foot print going to be the same as the whole property? Have you tried cutting the outside contours of the dig with water cooled diamond weel cutter and then crack the inside shunk with hydraulic crackers or expanding agents . Or powder exlposives in this kind of sensetive setting . Or is the stone cutter to expensive to use to make it a good solution.
The building is almost as wide as the property, there is a big retaining wall parralel to the fence that has to sit on a huge concrete footing. Yes have done just that with diamond cutting tools e.g Demo Saw, Ring Saw, Big Road Saw etc A few problems though, only the big road saw can cut deep enough to be useful but this can only operate over a perfect level surface, any slight variation and the blade jams or worse. The big diameter blades are very very expensive (~$1900 for a 900mm diameter blade) and the wear out very quickly in granite. Thanks for watching.
Noise sensitive neighbours, who'd rather listen to days of hammering and porta packs running rather then a millisecond of blast noise hahah, another great video mate, you're unbeatable!
My thoughts too
He was obsessively concerned about the vibration and no amount of evidence to the effect of it being a non event would passify him. Thanks for watching and contributing.
@@demolitiondavedrillandblast some people can't be helped 😂
If the developer had a bit of foresight he would have put drilling and basting language in the deeds. That way the first in could not screw the later buyers.
I bet his lot had been blasted to build his house.
It’s always good to see a man who understands his kit and takes proper care of it. Well done Dave.
I try Terry, thanks for watching.
Especially when it costs him serious money. I remember Dave talking about how expensive the special grease he has to use for the plugs and feathers is, and he said today that he needs to use lots of it.
@@demolitiondavedrillandblast Always a pleasure!
@@TrevorDennis100It is like 100€/kg or something stupid like that. Getting The big bucket is cheaper. Just full smaller can from that one. Cheap compared to darda wedges. Those 3 slabs of metal are Thousands, and are a consumable
@JanneHeino The genuine Darda grease is AU$240/500g tin! Still looking for a good substitute and it seems that the Castrol Molub - Alloy White paste T is no longer available. Thankfully the Chinese wedges and feathers are not too costly by comparison.
Blasting is awesome ... but those Hydraulic Breakers are absolutely mesmerizing!!! Between the slow creep of the rock, and the sound of it being slowing torn apart .. no words for that, just WOW!!!
Thanks for sharing 🇨🇦
Couldn't agree more Paul. I love them.
Can’t do the guys swivel/tilt attachment any good with a hammer on it.
As a safety professional, I really appreciate the bit about wearing a full face respirator, even outdoors. Silicosis is a horrible disease and by the time you are affected, it's far too late.
For sure Brandon, there was a market vacancy in my area when I started out because my predecessor died after an un successful heart and lung transplant. It pains me a great deal when I see lots of guys in India drilling down wells with no protection at all.
Like everyone here Dave, I love watching you break rocks really fast. But there is something so satisfying about watching you break rocks really slowly and quietly with the plugs and feathers, especially the hydraulic ones. Great fun.
I should use them more often.
@@demolitiondavedrillandblast
I agree Dave. This were a realy nice trip to follow. And to see the rock split slow is so satisfying. You know i like uncowerd bangs. And all this hard work. You realy deserve 5/5 Bangers 🧨🧨🧨🧨🧨 +💥
For this one! 😊
There's Dave. The hardest working man on TH-cam minding his own business when some disgruntled with the world for someone else's mistake comes over and says it'll be all Dave's fault that his house is falling apart before he even got to the job site and he will seek restitution out of his hyde.
Almost causes a person to wish misfortune find him, though we know better than that and it will likely find him without our assistance.
Thank you Dave for another incredible lesson on how you work magic by being even harder than the granite with your stick to it work ethic.
You are an amazing soul. May God bless you that much more.Already liked and subscribed.
Great video as usual. You do a nice job of explaining and then demonstrating how you tackle a job. Not every expert can do that. "There's nothing easy about the way I'm doing it."
Thanks 👍
Cracking performance sir. Bet the neighbours were glad to see the back of your truck.👍👍👍
When you build a house on a slope on top of rocks and fail to spend the money building the correct footings your bound to suffer cracks. Aside from that.
Imagine the noise made by a 7 magnitude earthquake in a granite mountain area. Terrifying.
My suggestion for a new method Dave is plasma gouging. Low noise and keeps ya warm in winter.
Exactly David, skimping on foundations and building over rock without lots of extra steel. Never thought about earthquake noise in granite areas, have you witnessed this?? Lots of interesting other issues there like electromagnetic emissions, earthquake lights etc. I'll have a look into plasma gouging.
Hello sir, watched this video with great interest. I'm not a demolition guy, but an older mason so I can relate. At the end of the video you mention it's not easy and you would be open to any ideas that could help the process. It occured to me that it's a lot like quarrying stone. If you started the job at the lowest point and began by removing material to create a space then you could split your ledge toward that space. The stone would have somewhere to go, it wouldn't just be squeezing against itself. If the finished space could be emptied as you went to the desired depth it should require less holes and your cracks would run deeper. You could also get some nice usable blocks as a by product. Thats the first time I've seen those hydraulic feather and wedge drivers . I was just gifted a 60"x70"x21" pink granite block and my next project will be to build a moon gate next to our koi pond. Greetings from CT, USA.⚒
The sound of granite cracking is so amazing.
Thanks for such a long and different episode.
Thanks for watching!
Great to hear the rock ''groaning'' as the hydraulics get to work. I guess you could label that job as a bit of a laborious PITA! Kudos for great work Dave - hope the $ return was adequate! Your equipment inventory must represent a huge investment, plus replacing damaged stuff.
Always replacing stuff Chris, the toll for this job was Two broken drill rods. One wedge bent over on the end (100% my fault) and one set of feathers and wedge bent like a banana when the rock moved in an unfriendly way.
@@demolitiondavedrillandblastou should alternate The way you push, The feather stretches on The front when splitting, so turning The Tool 180° and doing few holes that way and keep alternating. And have some angle on The holes.
@JanneHeino Thanks for the tip, you should post some video on your channel.
For some reason I really like the crunching sound the hydraulic crackers make as the rock starts to give way. Wouldn't want to stand too close though, lest I get hit by shards spalling off the surface.
I commented above put it on a loop to sleep to 😁
You got that right.
Amazing work! That grout splitting is incredible. It seems to me that the intelligent approach by the neighbors would have been to promise not to complain or call the authorities but at the end they wanted a big and several smaller rocks placed in their yards…….would have made for spectacular landscaping for no expense!
them air legs where really tricky for the short guys when doing a high hole an that's not a sound you like to here working in a tunnel all that cracking brings back bad memory's
I bet they are difficult, I know, I'm not big. When you hear that underground... start running!
People are funny, so they complain about using explosives (when explosives were probably used when the lot that they have was developed) but would rather hear a drill drilling 3X as many holes, and 4X as many hours of equipment running to get the rock out without explosives. I hate the Karens and the "not in my backyard" attitude. That Job had a large amount of work for you! I have used small squib charges on the Potato Chips, very little noise. But the Feathers seemed to work well seeing that it was so hard and brittle.
Ironic thing is that complainant comes from the rockiest site in the street and I well remember when competitors blasted the site about 20 years ago, they were blasting there for months. (They don't work fast).
There is something very satisfying and pleasurable seeing and hearing the cracks being made @24:53
100%, very therapeutic for me.
Just goes to show the raw power of the explosive when it just turns it to dust. Mate you are one hard working son of a gun.
Keep up the good work
Thanks Allan, it does keep me fit.
There something very satisfying watching the battle between the rock and hydraulic power.
Glad you had a good talking to that person giving short holes.😉
The different hardness of rock is surprising.
Thanks for the video.
Cheers
Cheers, thanks for watching.
I just love the sound of the rock cracking
It is music to my ears also Guy.
@@demolitiondavedrillandblastyour video was suggested recently because I watch a lot of heavy equipment content. I've become fascinated with each new release you have. Humans > Nature almost every time, given we have time to think it out. Nature sometimes surprises us like with the recent events in western Japan.
The Neighbor complains about the blasting noise, but not the drilling....Crazy neighbor
Love the content thx
I hope that the site owner approached the neighbour to pay half your bill for the extended time and effort that was involved in not using explosives. A good job Dave under difficult circumstances.
I think his chances of getting any sympathy are very close to Zero.
It is really amazing how you do this and the different techniques that you have to do the job. I really enjoy watching you breaking these rocks and granite. Keep making these videos. Sam from the US
Thank you very much Sam, I will keep making videos, don't you worry about that.
GREAT VIDEO, THANK YOU, DAVEY!. I CANNOT BUT IMAGINE ALL THE GIGANTIC MEGALITHIC CONSTRUCTS AROUND THIS AND OTHER PLANETS. THEY HAD TO DO THE EXACT OPPOSITE OF WHAT YOU ARE DOING!
As a rock worker I have a pretty good handle on how difficult they can be with all of the right modern tools, how did they manage with only copper tools??
Awesome video, Dave! Damn, what a hard slow slog this job must have been and then there was the neighbour…. Love the way you go about it and the respect for your tools is great to see. Hope the next job is a little easier for you. Thanks again.
Yeah the splitter was not cheap, not by a long shot.
A NICE LOOONG episode =)=) It just made my weekend, Good on ya Dave!!
Glad you enjoyed it #77
Terrific result Dave and definitely worth the effort of which there was plenty.
The Developer must have been really happy to eventually see that granite gone.
Oh yeah, this job has been held up more than a year because of multiple issues around the rocks.
@@demolitiondavedrillandblastThat will certainly put paid to any early completion bonus that’s for sure.
A masterclass in rock 'blasting', thx Dave. Have a nice Sunday.
Greetings from the Netherlands 👌😎
Rock on Ari, thanks for tuning in again.
Thank you Dave. They called in the right man for this tough job. You make the impossible posssible. Those hydraulic splitters were a really good investment.
I love them Mark, the 48mm holes are difficult though.
Like all of these other viewers, I really enjoy your work, Dave. Thanks!
Glad you like them Dave. There is a few more videos in the pipeline, bit short of time to edit it all just now though.
Great job Dave! That second piece was quite the massive bit of granite! Well done breaking that up, you had a good plan. The splitters are a work out for sure, but you've never been scared of a good time! Cheers bud, I'm glad this one is over for you!
Thanks 👍, I'm glad it is over also.
thank you Mr D for sharing this i enjoyed it very much - its nice to see what else you do aside from sending rocks - a happy site manager and calm for the mad neighbor
Glad you enjoyed it, I got another no explosive job on the radar
Your such an expert ! I’ve watched a lot of your videos . I appreciate that you take the time to explain what your doing and why as we are mostly clueless ! I’m always impressed that you do all of this by yourself and you don’t even have somebody to lend a hand! Keep up the cool work!😊
Thanks, I have worn out all my helpers.
@@demolitiondavedrillandblast I know the feeling I’ve been doing Plumbing for 17 years and I have help every once in a while but I mainly have to go at it alone . People just don’t want to work in the trades any more , or work hard for there paycheck . They all want a cushy desk job that they don’t have to do any real work and just complain that there job is to hard and they don’t get paid enough . Smh what is this world coming to brother ?
I do hope the person who was threatening to sue enjoyed the many days of noise and vibration that the extra drilling & breaking caused. I'm sure you could and would have come up with a blasting plan that would have caused minimum vibration and got the job done in a fraction of the time!
I could have easily done it in a compliant manor but he was also a determined that he would attempt to claim against my insurance (for existing damage - he was a bit nutty). Obviously he would not succeed, however when I go to my insurance with such an issue the first thing they want before they will act on my behalf is $10,000 excess from me. Just not worth pushing the issue.
Really enjoy seeing the means an methods. Thanks for taking time to make the video Dave. Excellent effects and editing too.
Glad you enjoyed it "Sweet or" and thanks for the compliments.
Wow! Much respect, that was a lot of hand drilling. I did a little when I was young and everything about it hurt. A lot of folks don't realize how hard a rock drill is on your joints and body. Honestly, the only thing that could have possibly made it marginally easier would have been to use a mini excavator with a small drill attachment. I'm not sure such an attachment in the size you needed exists , but I would imagine it would cost much more to do the job and you would be getting on and off the machine consistently if working solo. Great Job!
You mean a machine like this one - th-cam.com/video/EZNTJ1vyty8/w-d-xo.html
@@demolitiondavedrillandblast Wow, exactly like that. Yesterday was the first time I watched your channel. I'll have to check out a few more videos
www.youtube.com/@demolitiondavedrillandblast/videos 258 Blasting videos to choose from, thanks for tuning in.
i use to drill 13 to 15 holes with a jack leg a day 5 days a week driving tunnel and after a few weeks my hands would burn at night.i had nerve damage that took about a year to heal after i quit mining.
Being cautious on liabilities on preexisting damage is a great idea.and I wouldnt doubt damage claims would come flying in the door. Unless it was at my house, , in which case I provide beer after work... I wish you were close. My friends and i Discovered a prehistoric river bed< unworked in Utah, united states,> and this is covered with a extremely hard top layer called " ironcap, the rock structure is called " gossen"and its iocated being in a isolated part of the desert. Thise ancient untouched old riverbeds in this area are notorious for placer gold content and the area... There is so much legal paperwork I might never get clearance to blast exploratory holes so I have to keep prospecting...elsewhere.. Mining is extremely hard work, even working surface placer gold deposits... and of course you dont know if there is gold there till you look.
G'day Dave your workmanship is amazing mate. I really injoy watching and learning 👍
Glad you enjoy it!
Excellent video Dave. No Big Booms, But very enjoyable just the same. Thanks for sharing.
Glad you enjoyed it
That seemed like a pain in the butt job, I like the hydraulic splitters and the plug and feathers. Too bad about that neighbor . Great job and a great video.
It was a difficult one.
Bloody good work Dave mate 💪💪💪
Thanks Luke.
Great work Dave, do ya reckon ya could post a link to URI you mentioned at 33:11?
instagram.com/valunovnet/ and www.youtube.com/@valunov/videos
@@demolitiondavedrillandblast Thanks Dave, all the best mate.
MM77 Approved 👍🏼👍🏼………………………………………………….I’m willing to bet he wasn’t complaining about noise when HIS property was being developed!!! You KNOW I like seeing rocks fly, but those hydraulic splitters………………………there’s something oddly satisfying about watching them.
Ironic thing is that complainant comes from the rockiest site in the street and I well remember when competitors blasted the site about 20 years ago, they were blasting there for months. (They don't work fast).
The power of a simple wedge.....amazing.
Mechanical advantage at its finest.
lovely walling stone you made there.
Glad you like it!.... I wish I had somewhere I could store it and sell from, currently it is my waste product.
Don’t they know your demolition Dave not expanding goo Dave and I like to see you explode them well we all do things we don’t want to your a good guy
It would be cool if they used the granite that was broken out to make a wall or something on the property! Great video, this looks like a very enjoyable line of work.
This often happens.
I never knew watching rocks break could be so much fun....
I cannot imagine how unreasonable a neighbor has to be to not have that same amount of rock gone in a small series of millisecond blasts...
In return he got a lot more noise for much longer.
Patience wins the war not the size of your bomb. Great job Dave
Size does matter they say.
Seismic, Dave. Simply seismic
Thanks for watching and contributing.
How can this be so interesting to watch.
Thanks, it’s a nice alternative to boom
Glad you enjoy it Bruce.
23:06 sounds like something is about to implode, or a sinkhole is opening up! Creepy sound, that sound would keep me up at night, when I did septic systems, and such the Lazer level would keep me up, I'd heat it when I dozed off to sleep, I'd hear beep , beep , beeeeep and nearly jump up, it drove me insane about 4 nights a week, the other three I was either too tired to dream, or too drunk! Even 5-6 months later I'd hear it, crazy how the mind works!
The never ending beep beep beep, I hear it also.
You can make enough noise to upset the neighbour, but not enough to scare away a 6 foot mouse.
Got to keep a close eye on those 6 Foot mice, can be dangerous critters.
Dave it’s about 3rd time I have watched this video and it still interesting. I like the way you explain step by step and the video work is very good. Thinking about how you could do it better have thought about a light sabre or ear plugs for the neighbour. Look forward to your new video’s.
Glad you enjoyed it.
i really love these videos. that granite is tuff stuff !!! on the internet they got giant hydraulic splitters that hang from the excavator boom by chain. but they need giant 4 inch holes !!! i was thinking theres got to be a way to make a portable drill press type machine that could drill with large diamond tip core bits. drilling with core bits is quiet and not so hard on the back. then the excavator could come in after with giant splitter and bust it up. -not fun like blasting tho !!!
Hey, thanks for tuning in. The machine that you dream of already exists however core drilling rock does have some difficulties and disadvantageous compared to the normal hammer drilling with a big drill rig. First problem is extracting the core, this is no problem when core drilling concrete, but rock often has horizontal joints and bedding planes that cause the rock core to snap off half way, it can be difficult and time consuming to extract the remainder. Second issue is that the ware rate is very high when drilling rock compared to concrete, hence it is expensive. Third issue is that coring is very, very slow compared to a good hydraulic hammer drill rig. th-cam.com/video/2krfrcm0cfA/w-d-xo.htmlsi=Jnomfv-o71YHvg9d&t=30
I could listen to hydraulics cracking rock all day.... but its less 'colorful' n explosive. Good to see ya mate. I been doing some 1200 sq m slabs lately.... tired
That is a lot of concrete!
Hi Dave, Good seeing you again! "very hard rock" was a bit of an under statement! Sorry to hear the neighbor was such a jerk! How many drill bits did you use? Thank goodness for the Aussie Biscuit mix to save the day! Did the neighbor complain about all the jackhammering, too? You really earned a day off after this one! BIG thumbs up!! Good safety advice, too!! How's Blaster Girl? Take Care, Stay safe, Jim
Broke 2 drill rods on this one, also bent the end over on one wedge and bent another set like a banana when the rock moved in an unfriendly way. Blaster Girl is doing well in her own business.
id consider useing a reclaimer or a rockwheel for hard stone - just have to work in layers
Rock wheel just bounces off this stuff.
When you quote, chat to the neighbor to find out their thought. If they have issues, either decline to job or include budget for them to have a holiday whilst you get the job done.
Yes... the old "empty housed don't complain" certainly applies here.
Nice job Dave - ''precious'' neighbours can be a real PITA, .............. just remember to charge PITA prices, ................keep you a troshing and take care.
Good tip!
Another great job, by DD. I hope you were compensated adequately. I think I would have charged in the $20-30,000 US dollar range for that job. I have had to do a job with similar neighbors in similar faulty construction projects, so know what you are up against. Most of these people don't want new houses in front of there view. That is the biggest, behind the scenes reason, for no blasting. I hope the additional noise and time of noise, was enjoyed by the bad neighbors.I hope you direct the drill exhaust toward their house, whenever possible. Only down side to that, is here in the States, we would have to erect acoustic barriers. Coming soon to Australia.
Oh.. yeah.. I have seen those barriers already - heavily promoted by the tools and equipment hire places. You are in the cost ballpark.
Post some video on your channel Mark.
@@demolitiondavedrillandblast I don't have a channel. Too busy blowing stuff up to film professionally. Customers don't want to see me dicking around with cameras, for what I charge.
@@demolitiondavedrillandblast Did I hear you say 351 hours on this job?
No... just had a look, it was 118 Hours. Are you on Linked in Mark?
Nice to see your video Dave I am sure this job would have been over and done in a week if you had all your tools at your disposal. Some folks get a bun in the oven and really can't let go! They can only see their perspective and we all have to step around their detritus.
100%, I said to the guy that I can go through the blast design and explain all of the numbers for you, we can do a small trial blast and measure the results etc.... Would not budge.
This was really interesting to watch. Thanks for sharing!
Glad you enjoyed it! Have a look around my channel, you may find it interesting - www.youtube.com/@demolitiondavedrillandblast/videos
If neighbours whinge about the noise your making, just hire a fire engine and leave it running with the siren going. Will take their minds right of anything your doing.
Have done similar in the past...
@@demolitiondavedrillandblast Oh, that's a story I want to hear about.
It is "interesting" how many rock formations you encounter. I have no idea how many we have locally. We live in the USA in northern Utah almost Idaho.
In Melbourne the Three main ones that I work with are this one - Granodorite type I and Basalt and Rhyodacite (harder again!). There is also a few patches of sandstone and lots of mudstone - most of which just get hammered these days. The softer rocks also get blasted from time to time when there is no machine access.
The sound of the rock cracking is very satisfying. 👍👍👍👍👍👍
It really is Eddie!
Your splitters are a nice bit of kit.
They are indeed Bob.
"nothing easy about the way I'm doing it..." Nothing better than the way you choose do it on every job, it's up to you to decide based on other folks' noise toleration and safety.
Awesome video Dave 👍👍. Time for a couple of cold ones
Can't wait!
Those hydraulic splitters are the ducks nuts. The force they exert is mind boggling. With 8,500 psi on a 3 inch ram, you have around 26 tonnes of force. Multiply that by the taper of the plug, ( and I got no idea how to do that) and the forces generated are almost unstoppable.
Gotta be a bit careful. Steep tapers have a lot of passive friction to the point that morse tapers at like 1.5° become self locking, friction is greater than the active forces. So even if the trigonometry says that youll get - say - 100 times force multiplication, it'll be a good bit less in reality
Yes, this is why the right grease is extremely important - I found out the hard way when they friction weld together.
No idea if this would make any difference. What would happen if you turned those hydrologic splitters 90 degrees in the same hole. Will it make the split bigger? Or is a split a split and the digger with the hammer will finish it off anyway.
Because you already have a hole, the splitter is already there, just needs another cycle of the piston.
Sometimes this works.
Wow. That was a lot of work. Early on in the video I was thinking "this might be a good job for the hydraulic breakers". 🙂
I held off in the early part of the job because of bad access - there was no driveway, just a steep hill to climb up from the street and I could not get the very heavy hydraulic power pack up there. Later I convinced him to cut a drive way in.
Hi Dave, I was wondering if you use a special grease for the hydraulic wedges, or just the cheapest you can get hold of? On similar thoughts, are there any types of lubricant that although more expensive give much better results?
Yes, extremely important, the grease is a very thick lithium soap base compound with Titanium Dioxide and some other stuff, works very well and cost $480/Kg!!!! All other grease does not work too well and have had expensive failures where plugs and feathers friction weld themselves together!
@@demolitiondavedrillandblast wow!
@demolitiondavedrillandblast Thanks Dave. I suspected that might be the case. Adds quite an additional cost to splitting a hole when you use the hydraulics. Something that customers will never be able to get their heads around. I can only think of Kluber in the UK who can charge that much for specialist greases.
@@demolitiondavedrillandblast What exactly are you using? i use the stuff Darda repacks and i buy it buy the 5 gal pail when using my spliiters.
Jackleg is the best friend at least you’re well punched, you have nice machine for this task! Just the cracking granite sound is the best sound ever, but overall its seem less trouble to use 3/4” bit and pull down 50gr detcord and bury all 😬
Oh.. yeah, music to my ears also, would have been very quick and strait forward to fire the whole lot with cord and be done with it. Thanks for watching.
General question - Why do you put a delay on some of your charges, but on other rocks you blow the charges simultaneously
Ah... good question Steve. there are several reasons why you might use the millisecond delay technique. First and foremost it is used to control the blast vibration, to illustrate if I were to fire a 20 hole trench shot sequentially with say a 25ms delay between each of the holes, the resultant ground vibration would be a mild Brrrrrrrt.., spread over half a second and probably nobody would notice. Alternately if I were to save a bit of money and hook it up so that all of the holes fired at exactly the same instant the ground vibration would be one big jolt that makes the neighbors cups rattle in the cupboard and pictures fall of the wall etc. and every body want to pull my arms off. Second good reason to use the millisecond delay technique is that you get much much better rock fragmentation for the same number of holes and charge mass per hole than you would if you fire all of the holes together like a det cord shot. If you check out some of my videos of works on forest roads you will see typically large blocky pieces of rock as the product of det cord shots. Not a problem in this case because vibration is not and issue and usually very big machinery is available to manage the big pieces. Thanks for watching.
Have you thought about setting up some long dowels on blocks making a grid, to show the movement of the rock when the dowels fall, or, have dowels in a hole standing ear straight, then show any angle it may have when done cracking ... It could make a cool video!
Yeah... when I'm editing I can grab the time line slider and back and fourth very quickly and see all the rock bulge up. As for drilling extra hole to put dowels in... you are welcome to come and give this a try James.
How are weeks of drilling, power packs, excavators with breakers quieter than a day of drilling and a few seconds of blasting?
The blast vibration was his issue
Here I was curious if you'd held onto those hydraulic breakers or not.
No way, but I see plenty of video on line of other people up close when they are at full pressure
@@demolitiondavedrillandblast That's wise but I mean I hadn't seen them in a video in a while and I wasn't sure if you still owned them or if they were a demo from the maker or something.
Great video Dave start to finish a lot of graft thanks.
Thanks for watching #38
Clear the broken rock from infront to have space for the stone to move. Keeps the pressure in check.
Thanks for the video post Dave. I have an off subject Question here.There is a fellow here in the U.S. that wants to reforest some desert land in a very remote area of South Texas. He is a tech guy who has never drove a pick-up truck before so let's say he is a little green at moving earth.
He has to hire a skidder/bobcat to dig about three or four thousand holes maybe 2 meters across and 1.5 deep these will act as catch basins for rain storms that will hold the water and allow it to soak slowly into the ground.
He is having trouble moving in equipment fuel etc, I think a good blasting guy could come in and do the job with probably just blasting caps as it is basically just a sand and gravel mix with rocks no bigger than a small car tire.What is your opinion if you don't mind my asking. 40 years ago my mate and I did the blasting for a large resort development since we had to run all the utilities under ground. We did the a lot of blasts but the truth is its a miracle we are still alive because we sure weren't qualified .
Btw. he has a youtube channel its called Shaun overton /DUSTUPS where he explains his goal.Thanks stay safe.
You could just auger some holes in the ground and put a few Kg, of ANFO in each hole and blast some craters, would not be expensive. Ask a local blasting guy.
@@demolitiondavedrillandblast Thanks Dave, keep on rockin!
dave can you put a link to uri penslurg please
Instagram ch. for Yuri - instagram.com/valunovnet/
Maybe I missed the part where you say how deep the cracking goes, but how deep does the cracking go the depth of the drilling?
That really depends on the rock and requires a long answer, I'll get back to this.
There is nothing quite like the sound of ancient granite ripping apart under powerful mechanical advantage.💰
It warms my heart to hear this sound.
watching how difficult this is is mind-blowing.
That is life working with hard rock.
Wow, your sure sunk some hours into that job. Great video, thanks for putting it up.
You bet Paul, it was a shocker.
Interesting as always Dave. Well done!
Glad you enjoyed it, a few more good jobs on the radar
@@demolitiondavedrillandblast Look forward to them!
Always interesting to get called out to a job to finish what someone else started, you Always wonder if why.
For sure, you wonder if the jobs was too difficult for the first guy or he got kicked off or he left because of non payment etc. In this case he fired one shot and had a noisy run in with the neighbor and decided to chuck it in.
Nice job, cant find this Juri Penslov, do you have a link for him ?.
instagram.com/valunovnet/ and th-cam.com/users/valunov
Dexpan works when you not doing production. Only used it once…
Works while I'm sleeping.
Send the noise sensitive neighbours on an all expense paid holiday while you blast? Might be a lot less expansive and much quicker.
Good idea Michael.
couldn't you cut the end of the hydraulic wedge and use it like that?
Yes, I will cut it down and keep it as a spare.
If I'd been the neighbor I think I would have preferred hearing one or two days of hammering, pops, and muffled thuds to many days of hammering.
Ironic thing is that complainant comes from the rockiest site in the street and I well remember when competitors blasted the site about 20 years ago, they were blasting there for months. (They don't work fast).
Out of (chemical/materials eng) curiosity, what's the expandogoo made of?
Mostly Calcium Hydroxide - Quick Lime and a few other things. I recon there must also be some Kryptonite in it.
slow and steady work with a lot of eat, rinse and repeat. just wondering if next thought it may have been better to put up with a few bangs then listen to the rock hammer all day
The neighbor was busting to make a damages claim on me if I blasted, he would loose but I would still have to pay my insurance excess which is not small.
@@demolitiondavedrillandblast bugger looking for freebie
Sir, I need some help sir .As you as possible you may you will help to me i thinking sir .Is their any chemicals acid to dissolve or soluble the rocks and stones with chemicals. Is their any solution please answer me
No. If there was such a way, everybody would be doing it.
I really enjoyed this. I know it was a lot of work. 😊
Yes it was! I enjoyed finishing it.
8500 psi
10sq in
30:1 wedge
3 units
4,000 tons?
Good number crunching Bruce, I'll look it up for you.
@@demolitiondavedrillandblast
Thanks.
I am curious.
Tensile strength of rock isn’t very good compared to shear or compression. I think.
My C-12 Darda is a 4" piston at 10,000 psi with a 17/1 incline on the feathers and wedges = 325 tons of splitting force. Hard granite like that, may be in the 1- 4000 lb. tensile range. 325 tons = 650,000 psi. Assuming high end, 650,000 divided by 4000 = 162.5 square inches. This is theoretical. I have broken a hard 8 ' diameter granite boulder on the surface, with 1 -1 3/4" X 30" hole. Being tied up in the ground is a whole other ball game. Good Dynamite ,or cast Pentalite produces around 200 kilobars ( 2.8 million) pounds of pressure, hence it's effectiveness.
@@markmayer2029
Help me out with the math.
Pi r sq. Times pressure. Times wedge taper.
I got just under a thousand tons and you got just over 300?
@markmayer2029 I would love to do some side by side comparisons of a real Darda compared to my Chinese copy, I see guys like Yuri P on Instagram breaking some monster rocks that mine would just not look at. ( instagram.com/valunovnet/ )Pentalite always wins! Post some video on your channel Mark.
Should be nice landscaping stones / retaining walls etc ,all these hydraulic craced" square blocks" ..
Also why are the rock being blasted all the way out to the fense? Is the building foot print going to be the same as the whole property?
Have you tried cutting the outside contours of the dig with water cooled diamond weel cutter and then crack the inside shunk with hydraulic crackers or expanding agents . Or powder exlposives in this kind of sensetive setting . Or is the stone cutter to expensive to use to make it a good solution.
The building is almost as wide as the property, there is a big retaining wall parralel to the fence that has to sit on a huge concrete footing. Yes have done just that with diamond cutting tools e.g Demo Saw, Ring Saw, Big Road Saw etc A few problems though, only the big road saw can cut deep enough to be useful but this can only operate over a perfect level surface, any slight variation and the blade jams or worse. The big diameter blades are very very expensive (~$1900 for a 900mm diameter blade) and the wear out very quickly in granite. Thanks for watching.