客运专线路桥过渡段沉降规律的对比分析  

Comparative Analysis of the Settlement Distribution for Roadbridge Transition Section of the Passenger Line

作　　者：陈果元[1] 唐小弟[1] 魏丽敏[2] 

机构地区：[1]中南林业科技大学土木建筑与力学学院,湖南长沙410004 [2]中南大学土木建筑学院,湖南长沙410075

出　　处：《中南林业科技大学学报》2008年第2期151-155,共5页Journal of Central South University of Forestry & Technology

基　　金：铁道部秦沈客运专线综合试验科技攻关项目(项目编号:2000G47-C)

摘　　要：结合秦沈客运专线,针对高速铁路路桥过渡段沉降问题开展研究.根据现场测试结果及理论分析,得到了列车荷载作用下级配碎石路桥过渡段、土工格栅路桥过渡段的沉降规律,结果表明:土工格栅路桥过渡段比级配碎石路桥过渡段减小地基沉降量的效果更好,为高速铁路路桥过渡段的设计提供技术支持.This paper researches into the settlement of the road-bridge transition section of high-speed railway line, including the comprehensive technical test on Qingshen passenger line for ＂test and research on the means of setting up the road-bridge transition section＂. The settlement distribution of graded broken stone transition section and geo-grid transition section under train loads has been obtained according to the field test results and theoretical analysis. The results show that geo-grid transition section has better results than graded broken stone transition section in reducing settlement. It offers technical support for the design of road-bridge transition section of high-speed railway line.

关 键 词：土建工程 路桥过渡段 现场试验 级配碎石 土工格栅 沉降 

分 类 号：U213.157[交通运输工程—道路与铁道工程]