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I am Rahul Welcome to my youtube channel Civil Notebook.
About this video-
Dosto is video me app logo ko batayunga types of foundation in civil engineering ke bare me.
Ummeed Hai Aapko Ye Video Bahut Pasand Aayegi.
What is a Foundation in Construction?
Foundation is the lowest part of the building or the civil structure that is in direct contact with the soil which transfers loads from the structure to the soil safely.
Types of Foundation
1. shallow foundation
Individual footing or isolated footing
Combined footing
Strip foundation
Raft or mat foundation
Cantilever or Strap Footings
2. deep foundation
Pile foundation
Drilled Shafts or caissons
the most common type of foundation.
This foundation is constructed for a single column
The shape of individual footing is square or rectangle.
This type of foundation is suitable when columns are not closely spaced.
Combined footing is constructed when two or more columns are close enough and their isolated footings overlap each other.
It is a combination of isolated footings, but their structural design differs.
are used to support structural or nonstructural walls to transmit and distribute the loads to the soil. All footing runs along the direction of the wall. The thickness and size of the footing are specified based on the type of soil at the site. The width of footing is generally kept between 2-3 times the widths of the wall.
When two or more footing is connected by a beam, it is known as a combined footing, and beam connecting footing is known as a strap.
Raft or mat foundations are the types of foundation which are spread across the entire area of the building to support heavy structural loads from columns and walls.
The use of mat foundation is for columns and walls foundations where the loads from the structure on columns and walls are very high. This is used to prevent differential settlement of individual footings.
Pile foundation is a type of deep foundation which is used to transfer heavy loads from the structure to a hard rock strata much deep below the ground level.
A Caisson is one type of watertight retaining structure used in the construction of a concrete dam, as a pier of bridge construction in the river, or for the repair of ships. Caisson is a prefabricated hollow box or cylinder sunk into the water or ground to some desired depth and then filled with concrete thus forming a foundation.

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