结构工程师2017，Vol.33Issue(1)：176-183,8.
临近斜坡静压沉桩过程中边坡动态稳定性研究
Study of the Slope Stability Varying During Static Pressure Piledriving Nearby
摘要
Abstract
Based on the simplified Bishop method,in consideration of the force acting on the slope from the pile tip and the pile draft during static piledriving on the top of slope as well as the influence on the soil shear strength by the pile,considering shear strength of the pile after the pile drives through the dangerous slip surface,a closed solution of safety factor of the slope dynamic stability during the static piledriving is derived.The results show that during the static piledriving the safety factor of the slope decreases gradually,and the minimum of the safety factor of the slope comes as the pile tip arrives at the dangerous slip surface,then the safety factor of the slope increases obviously due to the shear strength of the pile and gets to stability in the end.The force acting on the slope from the pile tip and the pile draft produced during the static piledriving are important factors decreasing the stability of the slope;if the effective internal friction angle and the over consolidation ratio of the soil are larger,the safety factor of the slope will be larger;the safety factor will change in a large range on condition of a large pile radius or a small pile spacing.关键词
修正剑桥模型/动态稳定性/压桩/安全系数Key words
modified cam clay model/dynamic stability/piledriving/safety factor引用本文复制引用
范强,李镜培,李林..临近斜坡静压沉桩过程中边坡动态稳定性研究[J].结构工程师,2017,33(1):176-183,8.基金项目
国家自然科学基金项目(41272288) （41272288）
