Factors affecting the selection of Foundation

Factors affecting the selection of Foundation:

On the basis of ground/soil condition

• Shallow foundations are preferred where soil close to the surface is capable of supporting structure loads.
• Where the ground close to the surface is not capable of supporting structural loads, hard strata is searched for and deep foundation is required.
• Uniform stable ground requires relatively shallow foundation whereas filled up ground has low bearing capacity thus requires deep foundation.

On the basis of Loads from Building:

• In the case of low-rise building in a larger area, the extent of loading is relatively low, so shallow foundation can resist the load from the structures.
• In the case of the high-rise building built within less area have high loads. Therefore, the deep foundation is required as shallow foundation may not be able to resist such loads of greater intensity.