桩底压浆钻孔灌注桩高应变检测分析  

Analysis on High-strain Inspection for the Drilled Piles with End Grouting

作　　者：钟才根[1] 张锦栋[1] 李海鹏[2] 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]武警交通指挥部,北京100092

出　　处：《工程勘察》2004年第6期36-38,共3页Geotechnical Investigation & Surveying

摘　　要：本文结合桩底压浆钻孔灌注桩高应变检测工程实例 ,简要介绍了高应变检测的原理及测试方法 ;根据桩底压浆钻孔灌注桩高应变检测数据及静载试验结果 ,分析了桩端压浆的效果 ;探讨了桩的极限承载力构成中桩侧阻力与桩端阻力之间的相互关系 ,提出了最优桩端阻力的概念。Through the case histories by using high-strain insepection for the drilled piles with end grouting,the principle of high-strain inspection and the testing method are briefly introduced.According to the inspection data and the testing results the effect of the end grouting is analyzed,and the relationship between pile-side resistance and pile-end resistance for the limit bearing capacity of pile are discussed.The concept of optimal pile-end resistance is put forward.

关 键 词：高应变检测 桩底压浆 钻孔灌注桩 桩端阻力 桩侧阻力 极限承载力 静载试验 中桩 工程实例 原理 

分 类 号：TU473[建筑科学—结构工程] U445[建筑科学—土工工程]