滑动测微计技术在桩侧阻力测试中的应用与研究  

The Application and Research of the Technology of Sliding Micrometer in Pile Frictional Resistance Test

作　　者：石怀清 章杰[1] 茹伯勋[1] 

机构地区：[1]机械工业勘察设计研究院测试中心,西安710043

出　　处：《岩土工程技术》2003年第4期193-196,共4页Geotechnical Engineering Technique

摘　　要：阐述了滑动测微技术的基本原理与特点 ,并通过工程实例 ,说明了在考虑桩身混凝土应力应变的非线性问题和桩身横截面变化等因素下 ,滑动测微技术可使桩身侧阻力的测试结果更为精确 。This paper illustrates the essential principle and characteristic of the sliding micrometer,and by an engineering case proposes that it can raise the test accuracy of pile frictional resistance,considering some factors such as the nonlinearity of stress and strain of pile shaft concrete and the variation of pile diameter,and discusses the solution way of the non-homogeneity of pile shaft concrete.

关 键 词：桩载荷试验 滑动测微计 侧阻力 非线性 

分 类 号：TU473.1[建筑科学—结构工程]