高水位深基坑柔性底板水压作用下变形规律及抗浮研究  

A Study of Flexible Bottom Plate Deformation and the Anti-Floating Design of a Deep-Foundation with a High Water Level

作　　者：于丽[1] 王明年[1] 罗勇[1] 徐瑞[1] 郑心[1] 

机构地区：[1]西南交通大学土木工程学院,成都610031

出　　处：《现代隧道技术》2013年第1期129-133,共5页Modern Tunnelling Technology

摘　　要：为得到高水位深基坑柔性底板在水压作用下的变形规律及抗浮方法,文章结合具体工程对高水位深基坑的抗浮措施和设计方法进行了研究;采用数值计算的方法研究了大型基坑柔性底板在水压作用下的受力和变形规律,分析了水压作用下各层底板各点显著区别于刚性基础的变形和受力特点;根据底板受力中间大、四周小的特点,对抗拔桩抗浮的措施进行了优化。In order to illustrate the deformation law and anti-floating method for the flexible bottom plate of a deep- foundation with a high water level, research has been done concerning the countermeasures and designs based on cer- tain engineering works. Using numerical simulation, the laws relative to deformation and force characteristics of a flex ible bottom plate in a large foundation pit with a high water scribed measures for uplift piles were optimized. level were established. Based on these studies, the pre-

关 键 词：深基坑 柔性底板 抗浮 抗拔桩 

分 类 号：TU943.1[建筑科学—建筑技术科学]