摘要
新型CFG桩板结构复合地基是在CFG桩复合地基和桩板结构复合地基的基础上提出的一种地基处理方法,其借鉴桩-承台-土相互作用理论,充分利用承载板"荷载分配"作用以及桩间土的承载和变形协调能力。以京沪高铁某段软土地基为工程背景,通过有限元数值方法对常规CFG桩复合地基和新型CFG桩板结构复合地基的控制沉降效果进行对比分析,讨论桩板结构形式对复合地基沉降特性的影响,对新型CFG桩板结构复合地基数值模拟给出若干结论。
The new CFG pile -board structure composite foundation is a ground treatment technique based on CFG pile foundation and pile - board structure composite foundation, which makes full use of the bearing ca- pacity and the deformation compatibility of soil between piles and takes advantage of the pile - platform - soil interaction. The paper takes a part of soft ground in Beijing - Shanghai high - speed railway as the engineer- ing background and study object. Common soft ground and new CFG pile - board structure composite founda- tion are analyzed by finite element numerical method, and various factors to the effect on settlement - control- ling are discussed, some useful conclusions of the numerical simulation of the new CFG pile - board structure comoosite foundation are made.
出处
《湖北理工学院学报》
2012年第6期49-52,56,共5页
Journal of Hubei Polytechnic University
基金
湖北理工学院青年项目(项目编号:12xjz36Q)
湖北理工学院校级教学研究项目(项目编号:201017)
关键词
新型CFG桩板结构
沉降
数值模拟
new CFG pile - board structure
settlement
numerical simulation
