CE 326 Mod 12.9b Triaxial Shear Test

CE 326 webcast on triaxial shear testing; Section 11.9

[@simonnguyen3606]

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]

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!

[@emmerydickinson8302]

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

[@m3talh3ad18]

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.👍🏾

[@rafiullahqallander]

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

[@meaghanmacquarrie3755]

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!!!

[@taladiv3415]

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

[@AroundRavikant]

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

[@alideep9656]

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.

[@muhammedajmal715]

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

[@riccardocandeago4699]

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

[@user-ww5cm6zw2w]

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 Its clearly observed misbeliefs of foreign geotechnical engineering based on outdated Therzagi's theory.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]

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

[@contacttaimur]

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

[@ShashiKumar-yv7wf]

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.

[@JamanMonir]

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

[@rhushitparmar5939]

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

[@SauravKumar-ic4ly]

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

[@debangsu3181]

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

[@shahriarislam7134]

Wishing to see more of these helpful videos

[@gildanibarcentti5954]

Excellent explanation! Love your ending :)

[@n4tsumi]

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

[@39shobhit]

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

[@omkardhamane269]

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

[@parasbhatia6999]

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

[@gh5030]

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

[@mohamadoubanhoro9188]

great video on triaxial shear test

[@sagarsrsshah]

Cleared my doubts. Thanks!

[@gtrslayer1]

Thank you! Extremely helpful.

[@rawalali5182]

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

[@bmansan]

Excellent explanation

[@xavierariverahernandez5550]

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

[@9076173238]

Amazing explanation!

[@sayantanmunshi9969]

Detailed presentation should be like this. Thank You Sir

[@davidliu2328]

thank you for being so awesome!!!!

[@mounika501]

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

[@zs6511]

Best video for triaxial shear test.

[@sarahgibson492]

Excellent, concise and clear!

[@CuteCookie96]

That was very helpful, THANK YOU!

[@luongtuananh1220]

very good demostration thank you a lot

[@James-oc3fr]

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

[@a7.tynxt_]

you're a total mvp sir

[@dr_greg_mouse4125]

This is a great video indeed. Thanks.

[@krishanundas5497]

really nice presentation...

[@nimeshmakwana56]

Suparb explanation...👌👌

[@hirasingh4495]

Amazing video!

[@yinminthann4822]

thank you Prof.

[@arking1208]

Thanks a lot, good lecture

[@madhureddyindian9715]

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

[@MehsamTanzimKhan]

very good explanation! !

[@tonyk2038]

Thank you for this video!

[@chrisronald2856]

really nice video

[@frozentesla7771]

this video saves my life thanks Godbless

[@DEEPAKKUMAR-lt6iy]

Very good videos I am happy with this

[@chimoscreations9103]

amazing video

[@shahzadikhan8356]

best explanation ever

[@SunitaDevi-sv2bo]

Thank you sir

[@muhammaduneebalam5029]

Love you sir!

[@waseembhat2657]

great video

[@sevvalkursun16]

Thank you so much hocammmmm

[@caebc]

The Best video

[@dragonborndovahkiin6523]

Yes

[@hikuuuuuuu]

Thank you so much!!!!

[@bhandaribishnuhari7223]

everything is clear sir ..

[@mohituniyal4839]

thanx a lot.... great lecture

[@AdityaKumar-pv7mj]

Very nice sir

[@ashoktalks6108]

Thank you very much

[@pedrokaluf4189]

best video ever!! nice job

[@Hbalancev]

Thank you very much!

[@mdarifhossain3275]

Thank you so much.

[@lulukobe8nba]

thx a lot Prof

[@khantahsinazad4250]

You are excellent

[@ramnivasyadav4883]

thanq very much sir

[@parveshshukla3615]

its very helpful video

[@victimboy7765]

Excellent! That is all I can say!

[@user-ms5tb1gd7m]

Thank you!

[@albayrakcan]

awesome thank you!

[@satishr5307]

Thank you :)

[@228MOHAMED]

God Bless you

[@devil2482]

Thanks very much

[@srimanideepallavarapu925]

excellent

[@bijukcheemeni]

many thanks

[@eatedalalqusaireen3664]

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

[@halilibrahimsahin4639]

Thanks from Turkey

[@introductiontogeotechnical4976]

You’re welcome.

[@olivetree5017]

thank you!

[@vivekgautam6943]

Thanks a lot!

[@baltichannelskardu]

Nice

[@dann5480]

god bless the Americans!

[@dragonborndovahkiin6523]

Awesome!!!!!

[@hemantdhaked8530]

Thanks

[@ferfixer2]

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]

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]

Introduction to Geotechnial Engineering Excelent!

[@krishnakadiyam2864]

@@introductiontogeotechnical4976 best reply of my utube life

[@scientificresearch1400]

@@introductiontogeotechnical4976 waiting sir

[@introductiontogeotechnical4976]

Vishabjeet Singh Rajput please see this webcast for an explanation dilation and contraction during shear. kzbin.info/www/bejne/jnSygYGDec2Loa8

[@ziaulhasan6720]

thanks a lot

[@onyangoabuor5863]

You are awesome. I don't know who you are but just allow me to call you professor because you sound like one.

[@alxms10]

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?

[@nikossidiropoulos5627]

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

[@george6709]

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

[@fabienwang5706]

worth more than my undergraduate degree lol, imaging being a geotech student and studying all the important stuff on YT......, says a lot about university education..

[@DalelAzaiez]

thanks a lot :))

[@CivilConqueror]

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

[@ahmedobidat1743]

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]

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

[@ahmedobidat1743]

Your the man! Thanks a lot!

[@superbananavoltex]

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.

[@yektakaya4635]

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