黄土地基中疏桩基础差异沉降影响因素分析  

INFLUENCING FACTOR ANALYSIS OF SPARSE PILE FOUNDATION'S DIFFERENTIAL SETTLEMENT IN LOESS GROUND

作　　者：姚尔可[1] 王建平[1] 于鹏 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]北京首钢设计院,北京100043

出　　处：《建筑技术开发》2010年第2期14-15,28,共3页Building Technology Development

基　　金：陕西省自然科学基金项目(2007E202);西安建筑科技大学基础研究项目(JC0803)

摘　　要：疏桩基础中桩的设置主要是为了减少和控制建筑物的沉降,并使建筑物基础满足整体承载力的要求。针对黄土地基存在湿陷性的特点,对黄土地基的湿陷性处理应充分考虑复合桩基设计的要求。研究了地基土刚度和桩基支承刚度的调整对基础不均匀沉降的影响,并对其进行了有限元分析。The pile establishment is mainly to reduce and control building＇s settlement in the sparse pile foundation, and makes the building foundation to satisfy the total bearing capacity requirement. According to the loess foundation has characteristic of collapsibility, the ground treatment for collapsible loess should wet to fully consider the compound pile foundation design＇s request. This article has studied the foundation soil rigidity and the pile foundation supporting rigidity adjustment to the foundation differential settlement influence, and has carried on the finite element analysis.

关 键 词：疏桩基础 湿陷性 差异沉降 

分 类 号：TU473.1[建筑科学—结构工程]