桩-土相互作用影响的模型试验研究  

Research of model tests on pile-soil interaction influence

作　　者：王涛[1] 

机构地区：[1]中国建筑科学研究院地基基础研究所,北京100013

出　　处：《岩土力学》2008年第6期1589-1592,共4页Rock and Soil Mechanics

基　　金：建设部科技项目(No.97-07-02);十一.五国家科技支撑计划课题:城市地下空间建设关键技术研究与工程示范(No.2006BAJ27B02)

摘　　要：通过将模型试验、现场实测的结果与弹性理论解进行对比,指出弹性理论解夸大了桩-桩、桩-土、土-土相互作用影响,造成沉降计算值偏大和过高估计桩顶反力的不均匀性(或筏底地基土反力的不均匀性),并提出对弹性理论解进行修正的途径和方法。Through the model experiment,the in-situ actual result and the theoretical solution of elasticity are compared each other;and it is pointed out that the theoretical solution of elasticity exaggerated the pile-pile,pile-soil,soil-soil interaction influence and created the predicted subsidence value to be big and overestimated the nonuniformity of pile head reactions（or nonuniformity of raft bottom foundation soil reactions）.Finally,the solution way and method for revising the theoretical solution of elasticity ate pointed out.

关 键 词：桩-桩 桩-土 土-土 相互作用影响系数 弹性理论 

分 类 号：TU472[建筑科学—结构工程]