变参数刚-柔性桩复合地基研究

Study on composite foundation with rigid-flexible piles under variable parameters

为了研究刚-柔性桩复合地基的承载和变形特性,在温州地区进行了6个大型不同试验参数条件下刚-柔性桩复合地基试验,并在静荷载试验中对刚性承压板下压力盒进行同步检测。根据检测成果较系统地分析了褥垫层的设置与否、褥垫层厚度及材料、刚性桩置换率对刚-柔性桩复合地基特性的影响,为工程设计提供一些可以借鉴的结论。

In order to study the load-bearing and deformation characteristics of composite foundation with rigid-flexible pile,six static load tests of composite foundation with rigid-flexible piles are carded out under variable parameters,and pressure cells beneath beating plate are monitored in the process of static load tests.On basis of the test result,the authors analyze systematically the influences of different cushion parameters and replacement ratios,and some meaningful conclusions are obtained.