苏通大桥钻孔灌注桩承载力自平衡测试研究  

Study of Self-balanced Load Tests for Bored Piles in Sutong Bridge

作　　者：管义军[1] 

机构地区：[1]江苏省苏通大桥建设指挥部,南通226009

出　　处：《现代交通技术》2006年第1期22-25,56,共5页Modern Transportation Technology

摘　　要：本文通过苏通天桥16根试桩的承栽力自平衡测试,介绍了自平衡法静载试验的原理和方法,并根据测试结果,分析了影响桩基承载力的控制因素,比较了压浆前后承载力的变化情况,提出了有效的措施,为基础的优化设计和后续施工提供了保证。This paper presents the principle and method of self-balanced load test by testing the capacity of sixteen trial bored piles of Sutong Bridge. In addition, it analyzes the controlling factor which influences pile bearing capacity based on testing results; It also introduces some effective measures after comparing the varied capacity pre- and post-grouting, which guarantees optimized design and subsequent construction.

关 键 词：试桩工程 自平衡法 桩端压浆 等效转换 极限承载力 

分 类 号：U443.154[建筑科学—桥梁与隧道工程]