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Structuralaka: deep foundation system

Deep Foundation

In Plain English

A foundation that extends far into the ground to reach solid soil or rock capable of supporting the building.

Definition

A foundation system that transfers structural loads to deeper, more competent soil or rock layers far below the surface. Deep foundations are used when near-surface soils are too weak or compressible to support the structure. Piles and drilled piers are the most common types.

Example

Poor near-surface soils required a deep foundation of 60-foot driven steel piles to reach the bearing stratum.

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