摘要
桩基是当前较为常用的基础形式,穿越较厚度人工素填土层时,桩周土体大量下沉或土层因孔隙水压力消散而重新固结导致使地表下沉,从而对近桩基的影响是一个复杂的桩土共同作用的问题,一般试验方法难于准确测出地质条件下桩基的有关力学特性。本研究通过对深层不均匀人工素填土所做的单桩自平衡法静载试验,测试了桩周侧阻力及端阻力,分析了荷载传递形状。
Pile foundation is a commonly used base at present.When piles penetrate into thick artificial filling,the earth around it sinks heavily or surface subsidence occurs due to soil re-concretion caused by the vanishing pressure from pore water and the complex combined action exerts impact on the near pile foundation.The mechanical feature of pile foundation in geological condition is unlikely to be measured correctly with ordinary testing method.The paper has carries out static test on deep uneven artificial plain filling with single pile self-balanced method to check out the side resistance and end resistance and analyzes loading transmission mode.
出处
《高速铁路技术》
2011年第2期9-13,共5页
High Speed Railway Technology
关键词
桥梁工程
钻孔灌注桩
自平衡法
承载性能
等效转换
bridge project
bored pile
self-balance method
loading capacity
equivalent conversion
