挤扩多盘桩承力盘相邻土层性状对破坏状态及承载力的影响  

INFLUENCE OF ADJACENT SOIL STRATA OF LOAD-BEARING BRANCHES OF SQUEEZED AND EXPANDED MULTI-BRANCH PILE ON DAMAGE CONDITION AND BEARING CAPACITY

作　　者：钱永梅[1] 刘晓龙[1] 解学文 

机构地区：[1]吉林建筑大学,长春130118

出　　处：《建筑技术开发》2014年第6期18-20,共3页Building Technology Development

基　　金：国家自然科学基金项目(51278224)

摘　　要：介绍了国内外挤扩多盘桩研究现状及分析,初步探讨了桩盘埋置在不同性状土层时,与承力盘所在土层相邻的上下土层的厚度、物理性质对桩盘所在土层土体破坏以及承载力造成的影响,分析不同土层桩土共同工作情况,为完善单桩承载力的计算公式提供了理论依据,进一步保证挤扩多盘桩设计的合理性和可靠性。Status quo and analysis on foreign and domestic researches about squeezed and expanded multi-branch pile are introduced and preliminary discussion is made about the influence of thickness and physical property of adjacent soil strata in which multi-branch pile is imbedded on damage condition and bearing capacity of related strata, and joint working condition of different soil strata is analyzed, to provide theoretical basis for improvement of calculation formula for bearing capacity of single pile and to further guarantee the rationality and reliability of squeezed and expanded multi-branch pile design.

关 键 词：挤扩多盘桩 土层厚度 承载力 饱和度 干湿程度 剪切波速 

分 类 号：TU313.1[建筑科学—结构工程]