大吨位桩基荷载试验技术及其在工程中的应用  

The technology and application for large tonnage static loading tests of piles

作　　者：马晔[1] 宋春霞[1] 

机构地区：[1]交通运输部公路科学研究所,北京100088

出　　处：《世界地震工程》2010年第S1期221-224,共4页World Earthquake Engineering

基　　金：交通部科技项目(200731822330)

摘　　要：文中主要介绍了改进的锚桩反力梁法和自平衡法大吨位桩基荷载试验测试技术,并通过工程实践证明预应力技术在锚桩反力梁法中的应用解决了锚桩抗拔能力不足和反力系统混凝土在高应力下开裂问题,改进的自平衡法试桩技术消除了荷载箱附近数据失真的问题,大大提高了自平衡试桩方法的准确性和可靠性。This paper gives introduction to the improved anchor piles and reaction beam methods and self-balanced methods.At the same time,the paper also introduces the same cases that the technology of prestressing force has effectively solved the problems of anti-pull resistance capacity deficiency and cracks of anchor piles.The improvements of self-balanced method have eliminated the untruthful data and effectively improved the precision and reliability.

关 键 词：桩基荷载试验 锚桩反力梁法 自锚桩法 

分 类 号：TU473.1[建筑科学—结构工程]