Load and Resistance Factor Design Resistance Factors for Augercast in Place Piles: [Summary]
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2016-03-01
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Edition:Summary Report
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Abstract:Augered cast-in-place (ACIP) piles are approved by the Florida Department of Transportation (FDOT) only as foundations for noise walls. This limitation is largely due to the lack of resistance factors for ACIP piles in the AASHTO design code. ACIP pile construction begins with a hollow-stem continuous flight auger drilling a hole, which is then grouted from the auger tip as the drilling tool is withdrawn. Steel reinforcement is then inserted into the grout while it is still fluid. No temporary steel casing or slurry is needed, resulting in higher production efficiency under favorable subsurface conditions, for example near surface limestone.
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