不同桩长承台的桩基受力分析

Analysis on pile foundation stress of different-length pile cushion cap

对不同桩长的承台桩顶反力的计算方法进行了介绍,并与传统的等桩长下的计算结果进行比较和分析,得出按传统的计算方法计算出的短桩桩顶反力结果偏小,应进行修正,同时推导出了考虑桩顶反力修正系数的计算公式。

The paper introduces the pile roof counterforce calculation methods of different-length pile cushion cap, compares its results with tradi- tional equal-length pile results and makes an analysis, and then concludes that ： short pile roof counterforce result calculated with traditional cal- culation method is relatively smaller; therefore, it is necessary to make a correction. Simultaneously, it induces the computation formula of pile roof counterforce correction coefficient.