摘要
基于平卧滑坡的概化物理模型,针对工程中常用的微型圆桩加固平面滑坡的工况,建立了直接拱脚和摩擦拱脚共同存在的复合土拱计算模型。根据土拱效应的静力平衡条件和最不利位置拱脚处的土体Mohr-Coulomb准则探讨了较为合理的圆形微型桩间距的计算方法。并在此基础上,通过对计算对桩间距计算公式的定性分析,探讨了桩间距与滑坡土体的抗剪强度参数、抗滑桩半径、下滑力以及滑面倾角的变化规律。并以实例说明了桩间距的计算过程,得到了较为合理的计算结果。
Based on the generalized physical model of landslide,and aiming at the common condition using circular micro-piles to enhance landslide's stability,some conditions are taken into account to put forward calculation method of the pile space.These conditions are static equilibrium based on soil arching effect and Mohr-Coulomb yield criterion intensity principle of the soil in the composite arch foot where is the most unfavorable position.On this basis,it is analyzed qualitatively through studying the calculati...
出处
《西安科技大学学报》
CAS
北大核心
2009年第5期626-630,共5页
Journal of Xi’an University of Science and Technology
基金
国家自然科学基金项目(40772174)
