摘要
在抗滑桩桩间土拱力学特性分析的基础上,提出了以桩间土体的Mohr-Coulomb破坏准则、土体的力学平衡和桩间土体的绕流阻力计算共同控制来确定临界桩间距的方法,并得到了较为合理的桩间距的计算公式。定量说明了在其他因素不变的情况下,临界桩间距随桩后土体的粘聚力和内摩擦角的增大而增大,随桩后滑坡推力的增大而减小。最后以一工程实例说明了桩间距的计算过程,得到了比较合理的结果。
Based on the analysis of mechanical characteristics of soil arching effect between adjacent anti-slide piles,some control conditions were provided to calculate critical spacing between adjacent piles. The rational calculation formula of spacing between adjacent piles was obtained, h supplied some references to theoretical calculation of the spacing between two piles and engineering practice. According to the formula, it was quantitatively shown that the spacing increased with the increase of cohesion or internal friction angle of soil behind piles and decreased with the increase of driving force behind piles while other effective factors were assumed constant. In the end, the calculation procedure of spacing between adjacent piles was illustrated by a practical project and the result shows that this method is rational.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2005年第8期64-67,共4页
Journal of Wuhan University of Technology
关键词
抗滑桩
桩间土拱
临界桩间距
边坡
anti-slide pile
soil arching between one another pile
critical spacing between two piles
slope
作者简介
王乾坤（1964-），男，教授．E-mail：wangqk@mail．whut．edu．cn
