A typical field testing procedure to determine the load bearing capacity of t he prepared ground....In this instance several feet of a clay loam fill compacted with a sheep's foot rolling vibrator.
5:27 - 5:33. I Love it. Exactly right. Theoretical and Correlations are all well and good for some applications, and gives us limited but some good information. An experienced field inspector is very valuable. Those blow counts mean nothing when you add more water to the equation, and have nothing to do with relative compaction.
This is a dynamic cone penetration test. Your not suppose to reverse bang the weight when moving the weight to the top when setting it to drop. That causes the cone to pop out of the hole and mess up the reading. When setting the cone up for the first test the cone has a flanged end which needs to be at ground level or the next increment level down and not driven down like he said which prematurely compacts the soil. That alters the test results.
I dont really know whats going on but i can tell hes not supposed to let it smack the top in between pounds lol, hes going against what hes trying to do.
We can correlate the relative density (compaction) of the fill to the DCP value. However, the drop of the the hammering should be free fall. I don not think that was free fall.
That very different to a DCP we perform in Australia. I guess the technician here is augering compacted fill out a bit, to lower the resistance of the DCP so it doesnt give false readngs? Please correct me if im wrong.
Seems a bit crude for penetrometer only usable in this form for residential not for skyscrappers you probably want a more continuous digital penetrometer capable of accurately giving you the kips or N /mm^2 values that you then can uses to know if you have enough compaction to build on.
Based on what I currently study I can relate to two points.. 1. Having Clay that much won't help because of consistency (Harder to make it compact as the grains have around the same diameter) 2. As I know that Clay it's not really an Aquifer so it can prevent Water from draining deeper like you suggested BUT I think this will cause Liquidification in the soil above it - means that water will reduce the strength of Soil.. OMG it's hard to translate to English 😶
okay i do this for a living and ive found this video is gonna educate people to do this incorrectly. no offense to the makers of this but ya the kid tried to do it and thats a valiant thing but ya this is how you get fired at a materials testing/ engineering firm
A typical ECS technician I have no clue why he is doing a DCP for an embankment fill I think his project manager asked him to do that so he can have something to bill his client on.
It's all bullsht man. You can have widly different results by just testing 3 feet away. The whole point is to say soil testing was done and everyone goes about their day. I know project managers who would say "test at a different spot" when there is a failure.
probably only need 2000 pcf anyway... it seems like fill though which is why I wondered why the he was doing load bearing test... I guess every county has their own requirements
branon mitchell Oh, I'm as lazy as they get. Small bit of water in a footing...call the CMT manager. Footing inspection CANCELLED. Trip charge.... Just kidding. Maybe. ;-)
+administrator1112 It is a bearing capacity test. This method describes the test used to evaluate the thickness and bearing capacity of the grade (and sub grade if using a hand boring device) using the Dynamic Cone Penetrometer. I use it to determine footing (column and continuous footings) bearing capacity.
Love how the video ends before the test is complete. Very useful.
5:27 - 5:33. I Love it. Exactly right. Theoretical and Correlations are all well and good for some applications, and gives us limited but some good information. An experienced field inspector is very valuable. Those blow counts mean nothing when you add more water to the equation, and have nothing to do with relative compaction.
Labor rate: 85/Hr. If you watch: 175/Hr. If you ask questions: 250/Hr.
why isnt he wearing earmuffs tack!
@@isabelaguillen5399 The real question is why isn't a woman doing that job.
This is a dynamic cone penetration test. Your not suppose to reverse bang the weight when moving the weight to the top when setting it to drop. That causes the cone to pop out of the hole and mess up the reading. When setting the cone up for the first test the cone has a flanged end which needs to be at ground level or the next increment level down and not driven down like he said which prematurely compacts the soil. That alters the test results.
jonathan greenawalt yeah theyre amateurs, my boss would fire them but i would give them two 🖒🖒 because they probably get paid like doo doo
I dont really know whats going on but i can tell hes not supposed to let it smack the top in between pounds lol, hes going against what hes trying to do.
th-cam.com/video/jubbj06bPXE/w-d-xo.html
What other manual tests can be performed before construction?
Don't know why I watched this but right or wrong I never knew this & learned something.
Very informative thanks doing mine soon
We can correlate the relative density (compaction) of the fill to the DCP value. However, the drop of the the hammering should be free fall. I don not think that was free fall.
looks like he was loosely holding it, but also lifting it up a lil too hard and topping it when he swung up so...
Thank you so much......Big Help!
That very different to a DCP we perform in Australia. I guess the technician here is augering compacted fill out a bit, to lower the resistance of the DCP so it doesnt give false readngs? Please correct me if im wrong.
Seems a bit crude for penetrometer only usable in this form for residential not for skyscrappers you probably want a more continuous digital penetrometer capable of accurately giving you the kips or N /mm^2 values that you then can uses to know if you have enough compaction to build on.
how do you know if watter table is 2 high to build a basement?
Poor compaction guy you guys annoyed the shit out of him with all your damm questions
which standard have this method any standard code?
I’m curious what the PSF for the dirt was
I need this process done in Thomasville, How can I get in touch with your team to get it schedule, Thank you MIlton E Pena Pacheco
Hello i want to buy this whole equipment can you say where i can get it
What if the ditch had about 50% clay
Will the clay help compact or stop water flow reach lower
Based on what I currently study I can relate to two points..
1. Having Clay that much won't help because of consistency (Harder to make it compact as the grains have around the same diameter)
2. As I know that Clay it's not really an Aquifer so it can prevent Water from draining deeper like you suggested BUT I think this will cause Liquidification in the soil above it - means that water will reduce the strength of Soil..
OMG it's hard to translate to English 😶
Hi i need some for determine the compaction
thank
okay i do this for a living and ive found this video is gonna educate people to do this incorrectly. no offense to the makers of this but ya the kid tried to do it and thats a valiant thing but ya this is how you get fired at a materials testing/ engineering firm
A typical ECS technician
I have no clue why he is doing a DCP for an embankment fill
I think his project manager asked him to do that so he can have something to bill his client on.
He did not perform the test right by not doing a free flow blow, however if an embankment is to be compacted, the compaction has to be tested.
It's all bullsht man. You can have widly different results by just testing 3 feet away. The whole point is to say soil testing was done and everyone goes about their day.
I know project managers who would say "test at a different spot" when there is a failure.
Why not use a nuke
Need a proctor test for that
Where's your troxler dude!
+branon mitchell That's for compaction...not bearing capacity. I could be wrong, though.
You are correct... I would have cheated and used a hand held pentrometer and a probe rod... I'm lazy :)
probably only need 2000 pcf anyway... it seems like fill though which is why I wondered why the he was doing load bearing test... I guess every county has their own requirements
Yeah...and some of them are much worse than others. LOL
branon mitchell Oh, I'm as lazy as they get. Small bit of water in a footing...call the CMT manager. Footing inspection CANCELLED. Trip charge....
Just kidding. Maybe. ;-)
Thanku
th-cam.com/video/jubbj06bPXE/w-d-xo.html
So they said they pretty much know the results even before they do this test. Kind of like the 2020 U.S. Presidential election!
🤣 Its funny because its true
Where can this exact model penetrometer be purchased?
Durham geo slope indicator, this is the S-2000 model. No more pinched fingers
@@peavyxs Thank you! I reached out to them.
wow
so, your description says just "typical field testing procedure" does it have a proper name ?
+administrator1112 It is a bearing capacity test. This method describes the test used to evaluate the thickness and bearing capacity of the grade (and sub grade if using a hand boring device) using the Dynamic Cone Penetrometer. I use it to determine footing (column and continuous footings) bearing capacity.
That is not how to operate a DCP……☹️
hi guys i want to test soil compaction on road any body know about aashtoo or astm standard non-disturb way (field density test)NDT
Can you help me to get a job
Go to a union hall. Why you asking on TH-cam
I ran s drill rge eith spoon er
The guy doing all the talking needs to shut up and listen to the experts.
This is so stupid!!