楔形单桩水平承载特性研究

Numerical Simulation of Horizontal Bearing Capacity of Wedge Single Pile

通过对粉土中水平荷载作用下楔形桩的承载特性进行数值模拟,并与同等条件下等体积圆桩的承载特性进行对比,发现与同等条件下等体积圆桩相比,楔形桩水平承载力较之提高近10%,楔形桩身最大正弯距出现位置与同体积圆桩位置基本吻合,最大负弯矩出现位置比圆桩上升了12.5%,楔形桩桩周土体位移比圆桩减小约8.2%。这说明在水平荷载作用下楔形桩较等体积圆桩有更好的承载特性。

Based on the numerical simulation of the bearing characteristics of horizontal silt loading wedge pile, and compared with the same conditions under the bearing characteristics of the equal volume round pile, It is found that the horizontal bearing capacity of the wedge pile is nearly 10% higher than that of the equal volume pile under the same condition, the maximum positive bending distance of the wedge pile is in good agreement with the position of the same volume, and the maximum negative moment position was 12.5% higher than the circular pile, and the soil displacement of the wedge pile is about 8.2% lower than that of the round pile. It is shown that the wedge pile has better bearing characteristics than the equal volume pile under the horizontal load.