A mat foundation spreads out under the footprint of the building and declines the contact pressure compared to conventional strip or trench footing.
Mat footing foundation.
A raft foundation is often used when the soil is weak as it distributes the weight of the building over the entire area of the building and not over smaller zones like individual footings or at individual points like pile foundations this reduces the stress on the soil.
It is a suitable solution for low bearing capacity soil spread footing cover about 70 of the structure high structure loads soft pockets or cavities of in the soil to unknown extent raft and.
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.
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Raft mat foundation is used in those places where we have less bearing capacity of the soil.
Explanation of mat foundation.
The program geo5 slab can be used for the design of mat foundations or slabs of any shape on elastic subsoil using the finite element method.
The concept of stress is very basic to civil engineering.
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Mat footing furthermore mat footings are helping to reduce the varying settlements caused by construction on non homogenous soils or uneven load distribution on the footing.