沪通铁路某软土地基路堤边坡的稳定性分析  

Analysis on Stability of Soft Soil Foundation Embankment Slope of Shanghai—Nantong Railway

作　　者：潘成杰 

机构地区：[1]沪宁城际铁路股份有限公司,南京210000

出　　处：《路基工程》2017年第2期19-22,共4页Subgrade Engineering

基　　金：国家留学基金管理委员会资助项目(201507005063)

摘　　要：为掌握有限元法与极限平衡法分析边坡稳定性之间的关系,结合沪通铁路某典型工点,借助Geostudio数值模拟软件,使用这两种方法对铁路路堤边坡的稳定性进行了对比分析,进一步用有限元法模拟水泥搅拌桩加固路基后的稳定性。结果表明:这两种方法得到的安全系数最大相差5%,同时用极限平衡法得到的结果是偏于安全的;水泥搅拌桩加固路基,提高了路堤边坡的稳定性,安全系数由0.855提高到1.581。The stability of railway embankment slope is analyzed comparatively using finite element method and limit equilibrium method combining with a typical working point of Shanghai--Nantong railway with the aid of Geostudio numerical simulation software in order to grasp the relationship between the two methods which are used to analyze the stability of the slope. Further simulate the stability of cement mixing pile reinforcing subgrade with finite element method. The results show that the safety factors obtained by such tow methods differ 5 % in maximum and that obtained by limit equilibrium method is relatively safe. The cement mixing pile reinforcing subgrade increases the stability of embankment slope, increasing the safety coefficient to 1. 581 from 0. 855.

关 键 词：极限平衡法 有限元法 铁路路堤边坡 稳定性分析 水泥搅拌桩 

分 类 号：U416.14[交通运输工程—道路与铁道工程]