【摘要】 为探讨桩板墙加固边坡的稳定性,根据多块体滑移理论,采用极限分析上限定理,导出了为保证边坡稳定桩板墙结构中抗滑桩应提供的抗力的计算公式,提出了桩板墙结构加固边坡稳定性的一种新的分析方法.用该方法对算例进行了分析,并与旋转破坏模型获得的结果进行了比较.研究结果表明:桩板墙结构中,抗滑桩应提供的抗力随边坡坡角增大而增大,随坡体材料抗剪强度增大而减小;边坡潜在滑移面埋深随坡体抗剪强度增大变浅;按新方法得到的潜在滑移面比基于旋转破坏模型获得的潜在滑移面更危险.更多还原

【Abstract】 In order to analyze the stability of a slope reinforced with sheet pile wall,based on the multi-wedge translation mechanism the upper bound method was applied to derive the expressions to calculate needed lateral force acting on piles to guarantee the stability of a slope. A new method was presented to analyze the stability of slopes reinforced with sheet pile wall. In addition,an example was given to illustrate the presented method,and the results were compared with those obtained using the rotation failure mechanism. The research results show that needed lateral force acting on piles increases as slope angle increases,and decrease as soil strength increases. The potential sliding surface becomes increasingly shallow as soil strength increases,and the potential sliding surface obtained using the presented method is more critical than that obtained using the rotation failure mechanism.更多还原