套打桩重力式挡土墙的分析与计算  

Analysis and calculation of gravity retaining wall with striking pile

作　　者：孙彦仕 胡长明[2] 李永辉[2] 吕江新 

机构地区：[1]陕西省交通建设集团公司,陕西西安710075 [2]西安建筑科技大学,陕西西安710055 [3]惠州市规划建设局,广东惠州516001

出　　处：《西安建筑科技大学学报（自然科学版）》2009年第1期76-81,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：陕西省自然科学基金资助项目(2006E206)

摘　　要：以套打树根桩为例,研究了套打桩重力式挡土墙的设计理论,讨论了套打桩重力式挡土墙的水平位移和转角.以弹性地基梁理论为基础,建立了重力式挡墙变形计算模型,并给出了计算公式;以嵌岩桩理论为基础,讨论了树根桩在水平荷载作用下的荷载-位移关系,最后,根据树根桩和重力式挡土墙之间的变形协调关系,提出了套打桩重力式挡土墙的分析与计算步骤,并结合具体工程实例的计算,对比计算结果和工程实测,表明该分析与计算方法是合理的.The paper takes tree-root pile as an example, studying the design theory of the gravity retaining wall with striking pile,and discusses the horizontal deformation and angle of the gravity retaining wall with striking pile. Based on the elastic theory of foundation beam, the paper establishes the calculation model and gives the formula for gravity retaining walls. Based on the theory of the rock-socketed pile, the load-deformation relationships of tree-root pile under horizontal loading are discussed. Finally,according to the deformation compatibility relationshios between the wall and the tree-root pile, a new method and steps for the analysis and calculation of the gravity retaining walls with striking tree-root pile are presented. Through a case study, the results confirm that the method is reasonable.

关 键 词：重力式挡土墙 树根桩 土压力 水平位移 转角 

分 类 号：TU476.4[建筑科学—结构工程]