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.
出处
《工业建筑》
CSCD
北大核心
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)
关键词
衡重式桩板挡墙
离心模型试验
整体滑移
边坡
sheet pile wall with relieving platform
centrifugal model test
the global sliding
slope
