3. INTRODUCTION
It is the main components of the building.
It is the lowest part of the building.
It is the structure ,that transmits the load of the building to
the under laying soil.
It is that part of the building which supports the super
structure directly over it.
6. Types of shallow foundation
1. Spread footing.
2. Combined footing.
3. Mat or raft footing.
4. Grillage foundation.
5. Strap footing or cantilever footing.
6. Stepped foundation.
7. 1. Spread footing
The spread footing is generally constructed to support
an individual column. The spread footing may be
circular, square or rectangular slab of uniform
thickness
9. 3.Mat or raft foundation
It is the foundation that covers the entire area under
the structure
10. 4. Grillage foundation
It is the foundation used in those places where the
load of the structure is heavy and the bearing capacity
of soil is comparatively poor
11. 5. Strap footing
It is the footing consists of two or more individual
footing connected by a beam
12. 6. Stepped foundation
A widening at the bottom of a wall consisting of a
series of steps in the proportion of one horizontal to
two vertical units.
13. Deep foundation
If the depth of foundation is greater than its width it is
termed as deep foundation.
14. Types of deep foundation
1. Pile foundation.
2. Caisson foundation.
26. Box caisson
These are used in constructing bridge foundation
under water where little excavation is required.
27. CONCLUSIONS
After discussing the above topic what we suggest is by
considering a safe bearing capacity and condition of a
site we have decide the type of foundation.
More over the deep foundation is suitable for
structures.