Mat Foundation Construction Process

It is common to use mat foundation or deep basements to transfer the column loads to the underlying soil as well as provide floor slab for the basement.

Mat foundation construction process.

A mat foundation is used when the subsoil is weak and column loads are so heavy that the conventional spread footings cover more than 50 of the building area. At those places we use mat foundations to distributes the whole loads of the structure to the soil when the area of the footing was increase than the soil load bearing capacity will also increase because this foundation reduces the stress on the soil at the same place. Raft mat foundation is used in those places where we have less bearing capacity of the soil. Definition of raft foundation along with working principle when to choose raft types of raft foundation materials of raft foundation raft construction steps etc are discussed below.

To begin constructing the solid slab raft foundation the vegetative top soil original soil is removed then the soil left behind is compressed. The raft foundation is a very commonly used type of foundation system. Commonly used type of raft is the solid slab raft without downstand beam.