刚性桩复合地基模型试验研究  

Model experimental study on composite foundation with rigid piles

作　　者：李丽[1] 鲍鹏[1] 赵捷[1] 

机构地区：[1]河南大学土木建筑学院,开封475001

出　　处：《建筑结构》2010年第1期69-70,29,共3页Building Structure

基　　金：河南省科技攻关计划项目(496260015)

摘　　要：通过刚性桩复合地基群桩(桩数3×3)模型试验,对不同垫层厚度刚性桩复合地基的变形特性、不同桩位桩体和桩间土的受力特性进行测试,并对桩土应力比和荷载分担比等反映桩土共同工作性能的指标进行分析,得出了刚性桩复合地基的承载特性和变形规律。结论可为刚性桩复合地基的优化设计提供依据。Through the experimental research on rigid pile composite foundation group piles （pile number of 3 × 3 ） model, the deformation characteristics, force characteristics of piles and soil of rigid pile composite foundation with different cushion thickness are tested. The pile-soil stress ratio and load-sharing ratio which reflect the pile-soil interaction characteristic are analyzed, and bearing characteristics and deformation laws of rigid pile composite foundation are obtained. The conclusions can provide a basis for optimal design of the rigid pile composite foundation.

关 键 词：复合地基 刚性桩 模型试验 垫层 

分 类 号：TU473.1[建筑科学—结构工程] TU473.11[建筑科学—土工工程]