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Unformatted text preview: Estimating Single Pile Capacity in Axial Compression: (starting point, but seldom use just one) This is a complex soil-structure interaction problem. Insertion of the pile disturbs the soil and affects its strength. Capacity of the pile is affected by soil type, pile type, pile size and length, pile material, displacement and arching of soil around pile during installation, sensitivity of soil, overconsolidation, time, etc. Pile capacity calcutated by: 1. Static Analysis - side shear, toe bearing capacity 2. Pile driving formulae, wave equation (energy methods) 3. Field load tests - verify design, static, dynamic, "statnamic" P, P, P, P, I I , I I (0) ('J (oj P, (d) PtandU ~Betr Bere~antsev and Bishop, Hill and Reissner laky Varoshenko Mo" Caquot Meyerhof Vult Skemplon. Vanin, Buisman amI Gibson Terzaghi Assumed failure patterns under deep foundations. (From Vesic, 1967). (figure from Lambe & Whitman)...
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- Fall '08