What is shallow foundation and pile foundation?

Shallow foundations (sometimes called ‘spread footings’) include pads (‘isolated footings’), strip footings and rafts. Deep foundations include piles, pile walls, diaphragm walls and caissons.

What is the difference between shallow foundations and deep foundations?

A shallow foundation can be constructed in as little as a one-foot depth, whereas a deep foundations is formed at a depth of 10-300 feet. As such, a shallow foundation is used for projects that are small or lighter-weight buildings, and deep foundations for larger or hillside developments, or those on poor soil.

What is the difference between piling and foundation?

Pier foundation consists of cylindrical columns to support and transfer large superimposed loads to firm strata. Piles are driven through the overburden soils into the load-bearing strata. Piers are drilled with the drill machine.

What is the difference between pile foundation and well foundation?

Difference between Well Foundation and Pile Foundation Well Foundation is the type of deep foundation which is mainly equipped below the water level for bridges. A Pile Foundation is one type of slender structural member made of steel, concrete, wood, or composite material.

What is the minimum depth of pile foundation?

Depth of deep foundation depend on applied load on structure If the load on foundation is 500KN, minimum depth is 3.5m to 4.5m, If the load on foundation is in the range of 2000KN to 3000KN, minimum depth for pile foundation is 6.0m to 20.0m with pile caps.

Where is pile foundation used?

Pile foundation is needed in areas where the structures constructed are large & heavy and the soil underlying is weak. In areas where settlement issues are common due to soil liquefaction or water table issues, pile foundation is a better choice.

Are piles and piers the same?

Pier vs Pile Piles consist of vertical pillars made from concrete or steel. Piers are similar in size and shape. Piles are often used when the soil lacks firm strata, such as bedrock. Piles are usually meant for supporting greater loads, such as highway bridges.

Are piers and piles the same thing?

Piers are similar in size and shape. Piles are often used when the soil lacks firm strata, such as bedrock. Piles are usually meant for supporting greater loads, such as highway bridges. Piers are meant for smaller applications, such as sheds and small living units.

Why pile foundation is preferred?

The pile foundation is necessary to resist the uplift forces created due to water table rise or any other cause. These structures will need pile foundations. Pile foundation is necessary for areas where the structure surrounding has chances for soil erosion. This might not be resisted by the shallow foundations.