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Mechanism of Foundation failure : The General Shear Failure

In This video you will learn about: 1- General Shear Failure 2- Mechanism of foundation Failure in the general shear failure the video will explain the above in the below example: if we had a rectangular of width B, Located in the surface of dense sand Layer (or stiff soil) the load coming from the above will transform into a uniformly distributed load. Let’s name it q. Now based on that we will look on how the failure could happen You can divide the shape of the surface failure into 4 zones: First: a triangular zone directly under the footing and this zone will push down during the failure. Second: the second zone will be pressed by the first zone which will make it move under and to the side way. The same will happen to the zone 3 which will move to side and upward. That’s mean the general shear failure occurs by sliding. This video we lead us to talk about the local shear and then we will use the zone shape to calculate the ultimate bearing capacity and after that we will entertain the effect of the ground water-table on the foundation. the reference I used in this video : Introduction to Geotechnical Engineering 2nd Edition by Braja M. Das you can find it in the link below (affiliate) https://amzn.to/33uN38I