List of the Types of Bearing Capacity Failures of Foundation
The following are the types of bearing capacity failures of foundation.
? General Shear Failure.
? Local Shear Failure.
? Punching Shear Failure.
1. General Shear Failure
The idea is that a strip footing will lay on soft clay and loose sand. Shear failure can happen in ground at the load and then the failure surface starts spreading to the surface of the ground.
When this starts to occur, it is called a general shear failure. In general shear failure.You will also detect a heave on the sides of a general shear failure. What happens is that a continuous, well-defined, and distinct surface of failure starts forming between the edge of the base and the ground surface.
This loss occurs in dense or rigid soil which undergoes low compressibility. There is an evident constant bulging of the shear mass adjacent to the foot. Along with all the failure there is also a tilting of the foot.
The failure in this type is abrupt and devastating which also had a sharp curve top. There is a high length of disruption beyond the edge of the foot. At the foot edge the form of plastic balance is originally attained that is then finally stretches down and out.
Low strain is followed by general shear failure (<5 percent) in soil with considerable (>360) and broad N (N >30) with also a high relative density (ID >70 percent).
2. Local Shear failure
Here what happens is that the strip footing lays on medium-consistency clay or medium-dense sand. When there is an abrupt shock after the acceleration of the foundation when the load is equal to a certain Qu value.