岩土力学2011，Vol.32Issue(12)：3679-3684,6.
库水位波动条件下不同桩位抗滑桩抗滑稳定性研究
Anti-sliding stability of different pile positions under reservoir water level fluctuation
摘要
Abstract
In anti-sliding pile designing for Reservoir landslide improvement, the reasonable pile position determination is very important, which effects the engineering safety and cost. Taking Zhanghuanhoumiao east landslide for example, based on the engineering geological condition investigation and with the GeoStudio software, according to the reservoir operation curve, considering 4 different pile positions, the numerical simulations were done. The results show that: ①When water level rising up, the displacement of front edge decreases, but the displacement of back edge increases. The maximum displacement of the front edge appears during water level drawing down and lowest water level. The maximum, displacement of the back edge appears during water level rising up and the highest water level. ② The reasonable pile position for the back, front and middle of the landslide are separately I, II pile positions. I pile is at the 175m, which residual pushing force is maximum the best pile is II pile position, which is 130m from the shearing out point of landslide. At last, considering the influence of the water level fluctuation, the modified method of the safety factor for the anti-sliding pile design is presented, which will be important to the anti-sliding pile design for reservoir landslide.关键词
库水位波动/抗滑桩桩位/滑坡稳定性/设计安全系数Key words
running condition of reservoir/ anti-sliding pile position/ landslide stability/ design safety factor分类
建筑与水利引用本文复制引用
胡新丽,张永忠,李长冬,范付松..库水位波动条件下不同桩位抗滑桩抗滑稳定性研究[J].岩土力学,2011,32(12):3679-3684,6.基金项目
国家自然科学基金项目(No.40872175) （No.40872175）
国家重点基础研究发展计划(973计划)(No.2011CB710604). （973计划）
