soilsch11B - Deep Foundations Pile Foundations Introduction...

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Deep Foundations Pile Foundations
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Introduction Pile foundation used to support structure poor quality soil bearing capacity failure excessive settlement End-bearing pile Pile driven until it comes to rest on a hard impenetrable layer of soil or rock Friction pile load of the structure must come from the skin friction or adhesion between surface of the pile and the soil
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Pile Types – Table 11-5 Timber pile Concrete pile Cast-in-Place Precast Steel H-pile Pipe
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Pile Capacity Structural strength of the pile Material, size and shape Supporting strength of the soil Load transmitted by friction between soil and sides of pile Load transmitted to the soil directly to the soil below the pile tip
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Theoretical Pile Foundation Analysis Friction piles in Cohesionless and Cohesive soils. Ultimate Load determined by Geotechnical Engineer Allowable Load determined by building code Factor of Safety determined by Engineer
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soilsch11B - Deep Foundations Pile Foundations Introduction...

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