考虑桩侧土体非线性的静荷载作用下的单桩沉降时间效应研究

doi:10.13722/j.cnki.jrme.2014.0457

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Abstract The nonlinear elastic nature of surrounding soil of pile was simulated with a hyperbolic model，and the time effect of the settlement and the distribution of pile shaft resistance and the axial force of a single pile under static loading were investigated. The pile shaft was divided into finite segments from the head to the toe. The settlement of any pile segment at any moment was deduced with the program of wave equation analysis based on the decomposition of traveling wave. The parametric study was conducted to analyze the influence of pile-soil parameters on the settlement behavior of a single pile. The theoretical calculated s-lgt and q-s curves were compared with the testing results. The results demonstrated that the solutions simulated well the settlement behavior of a single pile under static loading.

Key words： soil mechanics settlement of single pile time effect pile shaft resistance axial force in pile program of wave equation analysis

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2014.0457 OR http://www.rockmech.org/EN/Y2015/V34/I05/1022

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