摘要
高速铁路路基稳定性决定了列车运行的舒适度和安全性。粉土作为强度低、水稳定性差、渗透性较强的特殊地层给高速铁路路基的稳定性带来了极大的隐患。本文分析了京沪高速铁路新长段粉土的基本工程力学性质,并对该粉土路基进行了室内水泥改良试验,以为高速铁路路基改良设计和施工提供试验依据和建议。
The stability of high-speed railway embankment determines the comfort and security,so the increase in speed design makes a larger difference between a high-speed rail and an ordinary one,and the requirements on the roadbed become more stringent at the same time.Siltysand,as the special strata with low intensity,poor water stability and strong permeability,has brought great risks to the stability of high-speed railway embankment.This paper analyzes the basic mechanical properties of siltysand for Beijing-Shanghai high-speed railway,and then carries out the indoor concrete improvement experiment so as to provide the experimental basis for the improvement and recommendation for high-speed rail.
出处
《安全与环境工程》
CAS
2011年第3期126-128,共3页
Safety and Environmental Engineering
关键词
高速铁路
路基
粉土
水泥
改良试验
high-speed railway
subgrade
siltysand
concrect
improvement
