摘要
高速铁路路基基础有两种形式:刚性基础和柔性基础,但目前对于CFG桩复合地基常用的质量检测方法为刚性承压板载荷试验,这种检测方法对于柔性基础来说是存在缺陷的.本文给出一种适合于高速铁路柔性基础作用原理的复合地基载荷试验方法,模拟高速铁路柔性加载的特性.通过对高速铁路CFG桩复合地基现场试验,研究其沉降变形和桩土荷载分担特性.
There are two forms of subgrade foundation： rigid foundation and flexible foundation. At present, rigid pressure plate load test is the common method for quality inspection of CFG pile. However, this test method has some disadvantages. In this paper, research is carried out on the characteristics of flexible load, and this test method is applied to the composite foundation with flexible load. Through the field test of CFG pile composite foundation in high-speed railway, the settlement deformation and load sharing ratio of pile and soil are also studied.
出处
《北京交通大学学报》
CAS
CSCD
北大核心
2009年第4期83-87,共5页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
铁道部科技开发计划项目(2007G046)
关键词
高速铁路
CFG桩复合地基
柔性载荷试验
沉降变形
荷载分担比
high-speed railway
CFG pile composite foundation
flexible load test
settlement deformation
load sharing ratio
