Bearing Capacity Failures of Foundations
Bearing Capacity
The bearing capacity of soil refers to its ability to support the loads placed on it. The density and shear strength of the soil are the most important factors. The bearing capacity of a load is also affected by how deeply it is embedded: the deeper the embedding, the more powerful the load.
Ultimate Bearing Capacity (Qu)
Directly beneath the foundation, that is the least amount of shear pressure which will cause the supporting soil to collapse.
Bearing Capacity Failures
Defining bearing capacity failure as the failure of a foundation caused by more stress than the soil can withstand is a difficult task. General shear failure, local shear failure, and punching shear failure are the three main types. A base failure occurs when the shear strength of the soil exceeds the bearing capacity of the soil. That refers to as a failure of bearing capacity.
Types of Bearing Capacity Failures
General Shear Failure
Strip footings rest on loose sand or soft clay. Shear failure occurs in the soil at that load, and the failure surface extends to the ground surface. General shear failure occurs when this occurs. There is always a heave on the sides in general shear failures.