CE 326 Mod 12.9b Triaxial Shear Test

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CE 326 Mod 12.9b Triaxial Shear Test

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Introduction to Geotechnical Engineering

Күн бұрын

CE 326 webcast on triaxial shear testing; Section 11.9

Пікірлер: 189

@simonnguyen3606 4 жыл бұрын

whoever gave this a thumbs down must be CRAZY! Being able to see a visual representation of what is happening on the graph while the test is being conducted is what makes this such an effective video. I look forward to viewing your other videos CHEERS!

@robertplautz9722 6 жыл бұрын

it is hard to find videos of this quality: clear sharp narration, easy-to-understand, detailed explanation, amazing graphical (visual) presentation. thank you so much!

@m3talh3ad18 3 жыл бұрын

Thank you so much for your simplified and on the point explanations. I tried a lot of text books but everything was a bit complicated, for me. Your voice is clear and slides are well made.👍🏾

@emmerydickinson8302 6 жыл бұрын

A simplify yet comprehensive explanation about triaxial tests. Thanks a lot for a helpful video

@meaghanmacquarrie3755 7 жыл бұрын

Thank you for this video. You have helped me develop a better understand on concepts I have struggled to learn. This is one of the best videos I have come across. I especially liked the corresponding mohr-circle diagram to triaxial type test! Thank you!!!

@rafiullahqallander 7 жыл бұрын

Dear Professor Kitch, Thank you so much for such incredible explanation; you saved my life :)

@taladiv3415 4 жыл бұрын

Thank you yet again Prof. Kitch for using your talents to help unlucky students make sense of all the letter and figure salad !

@alideep9656 2 жыл бұрын

I live where the Triaxial stress is so expensive and the university never turned the device on or fully explain how things go during the test, I can't thank you enough for this outstanding explanation.

@AroundRavikant 8 жыл бұрын

extremely thankful to u for this video... i was confused from many days about this topic.

@muhammedajmal715 3 жыл бұрын

It was an excellent presentation with to the point explanation with figures. Easy to understand the concept. Thank u soo much professor

@user-ww5cm6zw2w 4 жыл бұрын

Thanks for your video! Its clearly observed misbeliefs of foreign geotechnical engineering based on outdated Therzagi's theory. Very helpful for my students.

@VikashKumar-vl4hv 7 жыл бұрын

excellent video, one of the best study tutorial video i have gone through. thanks a lot sir

@ShashiKumar-yv7wf 6 жыл бұрын

Thank u very much for this video. One of the best video I have ever seen. All my concept about this topic is clear now.

@riccardocandeago4699 9 жыл бұрын

Thank you! This will help me with my geotechnics exam :)

@debangsu3181 4 жыл бұрын

SUCH A SIMPLE AND TO THE POINT EXPLANATION OF CU,UU,CD TESTS

@contacttaimur 8 жыл бұрын

Many thanks. This video was really helpful. And its like The Godfather, I watched it 3 times and still enjoyed it.

@JamanMonir 8 жыл бұрын

absolutely great tutorial or lecture. helpful for anyone who was in doubt like me. Thanks by the way

@SauravKumar-ic4ly 3 жыл бұрын

Thank you so much for this video, such an amazing way of explanation.

@rhushitparmar5939 4 жыл бұрын

Thank you so much. It's very conceptual and cleared my all doubts.

@39shobhit 9 жыл бұрын

very nice and effective presentation .... all the concept that you have told can be easily understood ......thank you for this great work ....

@gh5030 3 жыл бұрын

That’s what happens when we mix the hight knowledge and super teaching ability, very very useful, much better than my text book.. thank you so much

@gildanibarcentti5954 3 жыл бұрын

Excellent explanation! Love your ending :)

@n4tsumi 3 жыл бұрын

Really helpful for confused engineering student like me! thank you!

@omkardhamane269 3 жыл бұрын

Thank you so much for this video....I was very confused about this topic

@mounika501 3 жыл бұрын

Outstanding explaintion I'm really happy with thus vedio nd I learn very much about this topic

@shahriarislam7134 3 жыл бұрын

Wishing to see more of these helpful videos

@zs6511 3 жыл бұрын

Best video for triaxial shear test.

@luongtuananh1220 6 ай бұрын

very good demostration thank you a lot

@rawalali5182 5 жыл бұрын

thank you sir . it helped me clear my concept quite efficiently.

@parasbhatia6999 8 жыл бұрын

very nice video . thank you very much for such a quality content.

@sayantanmunshi9969 5 жыл бұрын

Detailed presentation should be like this. Thank You Sir

@sarahgibson492 2 жыл бұрын

Excellent, concise and clear!

@James-oc3fr Жыл бұрын

Thanks for video. it is really helpful for me to understand. good explanation. great

@gtrslayer1 5 жыл бұрын

Thank you! Extremely helpful.

@mohamadoubanhoro9188 8 жыл бұрын

great video on triaxial shear test

@9076173238 6 жыл бұрын

Amazing explanation!

@xavierariverahernandez5550 9 жыл бұрын

Good Video. Thank you! The last part was the best!

@a7.tynxt_ Жыл бұрын

you're a total mvp sir

@sagarsrsshah 9 жыл бұрын

Cleared my doubts. Thanks!

@davidliu2328 7 жыл бұрын

thank you for being so awesome!!!!

@bmansan 6 жыл бұрын

Excellent explanation

@CuteCookie96 7 жыл бұрын

That was very helpful, THANK YOU!

@eatedalalqusaireen3664 8 жыл бұрын

Very helpful. Could you give practical examples when to use each test??????????

@dr_greg_mouse4125 4 жыл бұрын

This is a great video indeed. Thanks.

@frozentesla7771 4 жыл бұрын

this video saves my life thanks Godbless

@tonyk2038 3 жыл бұрын

Thank you for this video!

@hirasingh4495 5 жыл бұрын

Amazing video!

@pedrokaluf4189 6 жыл бұрын

best video ever!! nice job

@shahzadikhan8356 5 жыл бұрын

best explanation ever

@chrisronald2856 6 ай бұрын

really nice video

@DEEPAKKUMAR-lt6iy 5 жыл бұрын

Very good videos I am happy with this

@yinminthann4822 Жыл бұрын

thank you Prof.

@sevvalkursun16 Жыл бұрын

Thank you so much hocammmmm

@caebc 8 жыл бұрын

The Best video

@dragonborndovahkiin6523 7 жыл бұрын

Yes

@muhammaduneebalam5029 4 жыл бұрын

Love you sir!

@MehsamTanzimKhan 7 жыл бұрын

very good explanation! !

@hikuuuuuuu 2 жыл бұрын

Thank you so much!!!!

@arking1208 8 жыл бұрын

Thanks a lot, good lecture

@SunitaDevi-sv2bo 3 жыл бұрын

Thank you sir

@superbananavoltex 8 жыл бұрын

Hi, thanks for the informative video, I learnt a lot! However, there's something that has been bugging me. From what I understand on my notes and also from my search, effective stress = total stress - pore pressure. But from your video on the part of CU, effective stress = total stress + pore pressure? Do correct me if my understanding on the video is wrong.

@ashoktalks6108 Жыл бұрын

Thank you very much

@nimeshmakwana56 7 жыл бұрын

Suparb explanation...👌👌

@alxms10 3 жыл бұрын

I have a question: in the last test (CU), first you allow water to drain slowly to measure sigma_3, and then close valve to measure excess water pressure, how did the gauge measure water pressure? Did you fill the sample with water again after drainage and before closing valve?

@chimoscreations9103 7 жыл бұрын

amazing video

@mdarifhossain3275 Жыл бұрын

Thank you so much.

@victimboy7765 5 жыл бұрын

Excellent! That is all I can say!

@madhureddyindian9715 5 жыл бұрын

Sir I love your explanation. I greatly appreciate your work. Love from India.

@krishanundas5497 6 жыл бұрын

really nice presentation...

@khantahsinazad4250 Жыл бұрын

You are excellent

@parveshshukla3615 5 жыл бұрын

its very helpful video

@mohituniyal4839 8 жыл бұрын

thanx a lot.... great lecture

@lulukobe8nba 2 жыл бұрын

thx a lot Prof

@nikossidiropoulos5627 3 жыл бұрын

13:21 - CU test, should the σ3 value at the consolidation stage be effective consolidated stress like in CD test at 11:53?

@george6709 2 жыл бұрын

no but you can obtain the effective stress by subtracting the pore pressure from the gauge

@bhandaribishnuhari7223 7 жыл бұрын

everything is clear sir ..

@yektakaya4635 6 жыл бұрын

does consolidating the soil mean the confining pressures are increased ? Because it says the soil is consolidated before being compressed

@Hbalancev 7 жыл бұрын

Thank you very much!

@waseembhat2657 8 жыл бұрын

great video

@DeepakKumar-hw1ih 4 жыл бұрын

In Consolidated-Undrained Test, Why negative pore pressure is developed ? Why not positive pore pressure ?

@228MOHAMED 4 жыл бұрын

God Bless you

@dann5480 6 жыл бұрын

god bless the Americans!

@ferfixer2 9 жыл бұрын

Thanks!! This video helped me a lot. However I do not understand why is in consolidated and undrained triaxial test the pore pressure negative. Could you tell me?

@introductiontogeotechnical4976 9 жыл бұрын

ferfixer2 When soils are sheared under drained conditions they can either contract (decrease in volume) if they are relatively loose or dilate (increase in volume) if the are relatively dense. This happens because soils are made up of individual particles that roll and slide over each other during shearing. If the soils are saturated and sheared under undrained conditions there cannot be any volume change (contraction or dilation) because both the soil and water are incompressible (relatively speaking). So instead of volume change during shear, there is a different reaction--change in pore pressure. Relatively loose soils generate positive pore pressure during shear because the soil wants to compress and push out some water. Relatively dense soils generate negative pore pressure during shear because the soils wants to dilate and draw water in. Hope that helps. I have some nice ideas for videos on this, but they won't be done for some time.

@adriananazcocampoverde1918 7 жыл бұрын

Introduction to Geotechnial Engineering Excelent!

@krishnakadiyam2864 4 жыл бұрын

@@introductiontogeotechnical4976 best reply of my utube life

@scientificresearch1400 4 жыл бұрын

@@introductiontogeotechnical4976 waiting sir

@introductiontogeotechnical4976 4 жыл бұрын

Vishabjeet Singh Rajput please see this webcast for an explanation dilation and contraction during shear. kzfaq.info/get/bejne/jql_g7F-qc68m4E.html

@albayrakcan 4 жыл бұрын

awesome thank you!

@designweb765 6 жыл бұрын

how do we go about using the data to draw required mohr circle?

@satishr5307 2 жыл бұрын

Thank you :)

@rajatkushwaha4296 4 жыл бұрын

for consolidated undrained test of normally consolidated clays in my textbook ....effective stress mohr circle is depicted by solid lines while total stress circles are by dashed lines also total stress circles are shifting right to the effective stress circles .....i.e effective stress are less than corresponding total stresses......i am confused.

@halilibrahimsahin4639 4 жыл бұрын

Thanks from Turkey

@introductiontogeotechnical4976 4 жыл бұрын

You’re welcome.

@ramnivasyadav4883 7 жыл бұрын

thanq very much sir

@srimanideepallavarapu925 6 жыл бұрын

excellent

@devil2482 7 жыл бұрын

Thanks very much

@CivilConqueror 6 жыл бұрын

In CU test there will be effective stress in confining stage as per my imagination and concepts but hear taken total stress in confining stage

@nafiaykut6556 3 жыл бұрын

I want to ask a question.I have calculated Fs from Michalowski’s (2002) 1.875 and I have calculated Fs=2.047 from slope stability program.What is the reason of this difference?

@user-ms5tb1gd7m 8 жыл бұрын

Thank you!

@baltichannelskardu 3 жыл бұрын

Nice

@AdityaKumar-pv7mj 6 жыл бұрын

Very nice sir

@ahmedobidat1743 6 жыл бұрын

I read in your book (Foundation Design Principles and Practices 3rd edition) this statement. In general su (phi = 0) increases with depth because the lower portions of the stratum have been consolidated to correspondingly greater loads, and thus have a higher shear strength. Would you please explain why does consolidation increase shear strength? Thank you so much!

@introductiontogeotechnical4976 6 жыл бұрын

Consolidation increases the density and decreases its void ratio. This will both stiffen and increase the strength of the soil.

@ahmedobidat1743 6 жыл бұрын

Your the man! Thanks a lot!

@bijukcheemeni 7 жыл бұрын

many thanks

@slowly5092 6 жыл бұрын

What is the highest triaxiality factor that can happen. Since triaxiality factor is ratio of mean stress, to the von Mises equivalent stress, what does it mean if triaxiality is 0.5, or 1, or 1.2? What does that mean for material? is it possible that TF is larger than 1?

@jacksonzheng4288 7 жыл бұрын

Why do we have a negative pore pressure during the CU test??

@JL-mj2eh 6 жыл бұрын

It's depends on soil is normal consoilidated clay or over consoilidated clay. Each has different tendency of volume strain which lead to +or- pore pressure.

@walidtlili7415 6 жыл бұрын

I still dont get it

@moipu8868 6 жыл бұрын

I reckon if the sample is OC/very stiff it would dilate during the first part of shearing and so the volume of the sample would increase. The increase in volume would cause -(ive) pore pressure ...silly

@saminyead1233 6 жыл бұрын

Basically, pore pressure generally seeks to decrease the effective stress of soil. Thus, if pore pressure increases the effective stress, it means the pore pressure is negative. As to why this can happen, you have to keep in mind that pore pressure usually seeks to decrease effective stress only if the soil is saturated. In other words, the pore pressure is negative only if the soil is saturated. Here, during the CU test, since we drained the soil sample in the consolidation phase, a significant amount of water has left the soil sample and thus it is no more saturated. In unsaturated conditions, the pore pressure is negative. This is the reason for the negative pore pressure. If you want to know why pore pressure is negative during unsaturated condition, then I suggest you visit this link - environment.uwe.ac.uk/geocal/SoilMech/water/water.htm Hopefully, you'll get your answer. :)