This is literally the best lecture on soil mechanics I've ever found. Well, I'm not grasping the whole stuff well, but I actually understand what's happening (especially what happen if the soil dilates or contracts). Thanks for sharing!
You are helping me study for my PE exam good sir. Thank you for all the work you put into making these. My geotech professor 5 years ago was more worried about his research and not teaching throughout my course it felt like.
Your students can be lucky to have somebody like you teaching them soil mechanics. I am from Germany (THE engineering country), nevertheless, none of my professors was able to explain things as you do.
best Geo video I ever watched, so good clear explanation and to the point. wish to have more videos to cover full lecture on geotech and foundation engineering.
Thank you for the great explanation. The procedure for obtaining soil samples for testing equipment is not clear. Take a soil sample with a rough N value using a standard penetration test. The operation is performed without knowing which depth of soil is suitable for the soil sample. If stones are mixed in, the inspection machine will not work properly. Obtain it at 1cm along with the N value data using an in-situ test machine. At the same time, data on loading, rotation, and settlement amount will be obtained. Perform the calculation to obtain C and φ. At that time, the singularity can be identified as the part that is causing the slope failure. C and φ are design data for renovation and construction, and must also be used as data for disaster prevention.
I would like to know why some cohesion was measured in the undrained test and non was measured in the drained test. does it mean that cohesion will never be recorded in a drained test and there will always be cohesion in an undrained test?
hallo professur thanks a lot for theses videos , I have a question if you can help me, on which basis the values of lateral stresse are chosen, for exemple in the triaxial shearing test we take generaly 50, 100 and 150 bars for soils
Professor, I have a question which is draining me from last couple of days, which made me visit this video. The doubt is that if there is a slope and i do the excavation on that slope, For accessing the immediate stability FOS and Long-term stability FOS. Which of the shear tests should i perform and why!. I thought about it like this, that immediately after the excavation and because the soil is clay, it can be thought of as a Drained soil because previously the soil has had the oppurtunity to drain away Excess pwp. so i thought of doing a CD test for Immediate stability For the Long term stability , i thought that it is a case of unloading(excavation) and since the soil is clay, it will show an increase in pwp hence i thought of doing an CU test. Please help me knowing the validity of my thought about the problem, that will be much appreciated.
Lucas Batista hello there, do you know any channel where I can get lectures on other civil engineering subjects for undergraduate students, similar to this?? I'll be very grateful if you could tell me about any.. :)
