桩板墙在路堑高边坡加固处治设计中的应用

Application of Piling Wall in Treatment Design of High Cutting Slope Reinforcement

以广州某快速路扩建工程中一处深挖路堑边坡的加固处治为依托,结合边坡所在工点的地质勘察成果,确定了采用悬臂抗滑桩+挡土板+预应力锚索框架的加固方案。从确定坡体失稳潜在滑面与剩余下滑力,到确定抗滑桩桩型、桩间距及桩长均进行了计算分析,可为类似项目的设计和施工提供一定的借鉴和参考。

Based on the reinforcing treatment of a deep cutting slope of an expressway in Guangzhou,combining with the geological survey results of the working site of the slope,the reinforcement scheme of using cantilever anti-slide pile,retaining board and prestressed anchor cable frame was determined.In this paper,calculation and analysis were carried out to determine the potential slip surface and the residual sliding force of slope body,and the type,spacing and length of anti-sliding pile,which can provide certain reference for the design and construction of similar projects.