衡重式桩板挡墙整体滑移离心试验研究  

CENTRIFUGAL MODEL TESTS ON THE GLOBAL SLIDING COURSE OF SHEET PILE WALL WITH RELIEVING PLATFORM

作　　者：张明 胡荣华[3] 刘国楠 潘效鸿[4] 

机构地区：[1]河南工程学院土木工程学院,郑州451191 [2]中国铁道科学研究院深圳研究设计院,广东深圳518034 [3]华夏幸福基业股份有限公司产业新城,北京100027 [4]深圳市国土资源和房产管理局直属分局,广东深圳518034

出　　处：《工业建筑》2017年第11期100-104,14,共6页Industrial Construction

基　　金：郑州市科技发展计划(153PKJGG137)

摘　　要：通过离心模型试验对衡重式桩板挡墙的整体滑移过程进行研究。试验表明:1)在结构发生整体滑移的同时,还产生了第一、第二破裂面,且整体滑移线恰好通过桩底;2)第一破坏面基本是沿着土层的主动破坏面滑动;第二破坏面通过卸载板端向地面延伸,其与卸载板间接近垂直;3)产生第一破坏面的原因是试验中桩前土体的强度过低,因此在衡重式桩板挡墙的设计计算过程中,应进行地基承载力的验算。A centrifugal model test was employed to study the global sliding course of the sheet pile wall with relieving platform.The results showed that： 1） when the global sliding occurred for the structure,the soil layer produced the first and the second failure surface,and the global sliding surface was just through pile bottom; 2） the first failure surface was basically along the soil layer of active failure surface; the second failure surface was through the end of the relieving platform and extended to the ground,the angle between the surface and the relieving platform was close to vertical; 3） the reason produced the first failure surface was that the strength of the soil in front of the pile was too low,thus in the process of design and calculation of the sheet pile wall with relieving platform,the bearing capacity of the foundation should be checked.

关 键 词：衡重式桩板挡墙 离心模型试验 整体滑移 边坡 

分 类 号：TU476.4[建筑科学—结构工程]