桩承载力自平衡测试法的理论研究  

THEORETICAL STUDY ON SELF-BALANCED LOADING TEST FOR PILE BEARING CAPACITY

作　　者：龚维明[1] 翟晋[1] 薛国亚[1] 

机构地区：[1]东南大学土木工程学院,南京210096

出　　处：《工业建筑》2002年第1期37-40,共4页Industrial Construction

基　　金：江苏省建委资助项目 (苏建科 1997-35 8号 )。

摘　　要：采用有限元法对桩承载力自平衡测试方法进行了理论探讨 ,重点研究测试时上下段桩的相互影响 ,桩顶受压、桩顶受拔、桩底托桩三种受载方式下上段桩摩阻力的大小关系 ,并结合工程探索该法Q -s曲线向传统Q -s曲线的转换公式。In this paper, a theoretical survey on self balanced loading test for pile bearing capacity with FEM has been done. It highlights the interaction between the upper part of the pile and the lower one, the relationship among the shaft resistance of vertically loaded piles for upper pile shaft in three loading ways. The loading ways includes compressive loading on pile top, tensile loading on pile top and compressive loading on pile bottom. Based on a series of projects, the formula is given which can convert the Q-s curve of self balanced test to the one of the compressive loading.

关 键 词：桩 自平衡测试 摩阻力 承载力 

分 类 号：TU473.1[建筑科学—结构工程]