Really kudos to his calm and clear voice which makes it easier to undertsand. (uni proffs rush their lesson for gods know why reason and ultimately their sentence structure were in mess) The words and phrases his used were precise.
Nice explanation with physics experiment for High School But for an Geotechinal Engineer: 1) Moisture Content 2) Surface tension 3) friction or shear strength 4) Optimum Moisture Content
Vajont dam disaster (1963) in Italy was also caused by quick filling of water capacity ignoring this soil mechanics effect on a formerly known instable slope of Toc Mountain. This mechanism triggered a deeper rockslide, according your description: increasing water pression reducing shear resistance.
Furthermore the front of rockslide from Toc Mountain draw a letter M.. curiously few hours before disaster a large Number of young men in Lavarone, organized a blasfemy rally procession against Virgin Mary. A Priest in Casso Village had in former time a vision about this disaster... 😢😢
Thank you very much sir. Difficult concepts explained in best possible manner. Thanks for sharing your invaluable knowledge with all engineers and students of engineering. Much appreciated.
Other than the fact that this knowledge is useful, I could listen to Mr Burland for days! His voice is an instant stress-reducer! (helpful when exams are in two days) :-)
Profesor, i lived in high tide area, every year i saw many building start to shift to the left or right side. I lived in west borneo. What best advice to build a foundation in high tide area especially if the land is peat most or gambut area? Thank you so much.
This is master class concept for most of land slide.sir,can u explain the pore water pressure generation in NC-OC clay.I am requesting you plz enplane the Drained and Undrained shear strength behavior of pure clay(whose liquid limit is greater then 250%) .
What’s the different between the damp soil that collapsed and the damn soil with high surface tension? He never poured water on the second pile of damp sand
I may be dumb, but for the hole in the cup demonstration, wouldnt a nicer explanation be "the water flowing out pushes the cup up so that the cup glides on the water instead of the grippy wood"
hello, i'm a student who worked on triaxial consolidated undrained on peat soil.. i would like to know if is it okay if pore pressure more higher then back pressure...if not okay..please explain to me why its happen.
I didn't understand the last concept! Why the second one is strongest? Even when 2nd & 3rd are same soil? 3rd just have bit more water content. So what .. 2nd will also increase its water content when tied will come in!?
I don’t really understand this. Is what he means in a damp soil the surface tension between the grain increases its sheer strength but if you give it too much water it reduces its sheer strength? So how do you check if the soil is too wet?
I think because he's trying to show the difference between a damp soil, and a damp soil affected by a tide. the surface tension on its own will increase the shear strength of a damp soil, but if that damp soil were to be affected by a tide, the water pressure introduced because of that tide will reduce its shear strength. i think.
One of the best demonstrations for a soil mechanics course! love to use it in my undergraduate geotechnical engineering course.
One of the best demonstrations for a soil mechanics course
This was a fascinating video. I'm a mechanical engineer so I never learned about strength of soils. This is more for civil engineers.
1:53 I like how he calls friction "sheering resistance".
*shearing resistance
there is a bit of difference between those two
Friction is general term whereas shearing resistance is used in soil mechanics quite often
Really kudos to his calm and clear voice which makes it easier to undertsand. (uni proffs rush their lesson for gods know why reason and ultimately their sentence structure were in mess) The words and phrases his used were precise.
what a mind blowing explanation........!
roshan took the words right out my mind seriously kinda creepy.
Brilliant explanation by Prof. Burland
Nice explanation with physics experiment for High School
But for an Geotechinal Engineer:
1) Moisture Content
2) Surface tension
3) friction or shear strength
4) Optimum Moisture Content
Water actually reduce the effective stress. And shear strength is proportional to effective stress 🤸🏻♂️, that's why it losses it's shear strength.
Great and Simply explained vedio.❣️Thank you sir.
Brilliant presentation Prof.
As a civil engineer, I agree with everything that you have just said.
i wish there were more videos......his explanation made my day
The best explaination!
what an ingenious explanation and experiment design.
Great demonstration!
what a great explanation, thank you sir
thankyou sir...that is how vetern professors make complex looking things on books so easy...
Good video for explaining some soil Civil Engineering concepts.
Beautiful demonstration!
Mind opening explanation.
Great set of videos. Really helped
Vajont dam disaster (1963) in Italy was also caused by quick filling of water capacity ignoring this soil mechanics effect on a formerly known instable slope of Toc Mountain. This mechanism triggered a deeper rockslide, according your description: increasing water pression reducing shear resistance.
Furthermore the front of rockslide from Toc Mountain draw a letter M.. curiously few hours before disaster a large Number of young men in Lavarone, organized a blasfemy rally procession against Virgin Mary. A Priest in Casso Village had in former time a vision about this disaster... 😢😢
these are a series of good videos !thx for uploading!
Wonderfully put together. Well done sir.
Thank you for your contribution !
Thank you for the great explanations.
Well explanation and good examples and understanding
Such a nice person!
Thanks a lot. Wish I was taught like this
Thank you very much sir. Difficult concepts explained in best possible manner. Thanks for sharing your invaluable knowledge with all engineers and students of engineering. Much appreciated.
THank you for this video ! Would you do a video to explain negative and positive pore pressure (plz)?
Other than the fact that this knowledge is useful, I could listen to Mr Burland for days! His voice is an instant stress-reducer! (helpful when exams are in two days) :-)
Very well explained!
Brilliant explanation of pwp
The best explanation ever
Excellent info.
Great experiments to explain the concepts.
At 2:10 I first thought: "Is he a bloody magician?"
tnx alot professor
Extraordinary teacher..
Thank You for that explanation.
excellent explanation that I have ever seen !!
Profesor, i lived in high tide area, every year i saw many building start to shift to the left or right side. I lived in west borneo. What best advice to build a foundation in high tide area especially if the land is peat most or gambut area?
Thank you so much.
More comprehensive than attending soil mechanics course for a year
Thank you. If you can upload with subtitles It will more helps to understand quickly
My man John Burland doing the explanation :O. Thanks sir
very good information
sumpah,,,,, cuma demonstrasi ini yang bikin saya yakin,,, selama ini saya ragu
Wonderful.clear explaination
outstanding video , very helpfull
thanks a lot
Beautiful
This is master class concept for most of land slide.sir,can u explain the pore water pressure generation in NC-OC clay.I am requesting you plz enplane the Drained and Undrained shear strength behavior of pure clay(whose liquid limit is greater then 250%) .
wow I came here cause my teacher has no clue what his talking about, I might share this with him. Brilliant!
good job my friend
Very good! Thanks sir!
U explain very well sir
Sheer explanation.
Cup, it is a cup.
Impressive
Nice explanation I am seeing from India
this is amazing. I love this.
Sir please make an video of skempton pore water parameters
wow.... 😍
looking forward for your next videos eagerly...
wow keren beautiful explanation
What’s the different between the damp soil that collapsed and the damn soil with high surface tension? He never poured water on the second pile of damp sand
the best one__amazing
Great ! Great ! Great !
Thank you so much ..
So the surface tension - is that why we apply some moisture to soils when compacting? Is this the point of reaching the optimum moisture content?
Thank You.!
thanks for this great video :)
I love it!
It is really amazing!!
Thank you so much!
I may be dumb, but for the hole in the cup demonstration, wouldnt a nicer explanation be "the water flowing out pushes the cup up so that the cup glides on the water instead of the grippy wood"
great
So does this mean that for granular materials, a little bit of water increases the stability, but too much water offsets this increase?
Thanks sir
Excllent
Simplified explanation for Engineers at globe
hello, i'm a student who worked on triaxial consolidated undrained on peat soil.. i would like to know if is it okay if pore pressure more higher then back pressure...if not okay..please explain to me why its happen.
sir can u explain the of shear strength of an expansive soil
water pressure acting upward which reduce the contact force between solid and beaker is due to water head between solid and bottom of beaker ?
I didn't understand the last concept!
Why the second one is strongest? Even when 2nd & 3rd are same soil? 3rd just have bit more water content. So what .. 2nd will also increase its water content when tied will come in!?
Empuxo e índice de saturação do solo
Water is remarkable.
Wish I went to Imperial
*But if two particles are fully submerged in water, the increase in water pressure has no effect in the effective stress between particles*
Wow!!!
Is shearing resistance same as frictional force?
No It Is not.
its like he is from westeros and good explanation
i like ur video
INTENSE
I don’t really understand this. Is what he means in a damp soil the surface tension between the grain increases its sheer strength but if you give it too much water it reduces its sheer strength? So how do you check if the soil is too wet?
check the water content.
thank sir, i have one question the failure occurs by friction between two particles or water pressure change (hydro -static pressure )
this video is about effects of water to soil?
As surface tension is caused by water and also shear is also caused by water then how can u justify it?
Doing god's work
like explantion keep explain us in future
you never have the "tide come in on the second one"
I think because he's trying to show the difference between a damp soil, and a damp soil affected by a tide. the surface tension on its own will increase the shear strength of a damp soil, but if that damp soil were to be affected by a tide, the water pressure introduced because of that tide will reduce its shear strength.
i think.
@@killadog84 you think, but still clueless right cause this video is completely stupid, and with a cup has a hole was bad a explantion
gteat....great...great
The middle sand did not slide because he didn't pour water.