某高速铁路试验段路基沉降实测及有限元分析  

Actual Measurement and FEM Analysis on Subgrade Settlement in the Testing Section of A High-speed Railway

作　　者：李波[1] 冷景岩[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300251

出　　处：《路基工程》2013年第6期35-37,43,共4页Subgrade Engineering

基　　金：铁道部科技研究开发计划(2010G003-F)

摘　　要：基于某高速铁路试验段路基沉降的实测,建立有限元模型进行模拟,得出了和实测拟合较好的计算结果。实测及有限元分析表明:路基填筑完成后预压三个月,沉降仍有一定发展趋势,不足以消除后期沉降的影响,路基在填筑后沉降发展需要很长时间才能完成。Subgrade settlement was simulated with a finite element model established on the basis of the data measured in the testing section of a high-speed railway, then a result fitted the measured result was obtained. The result of the actual measurement and the FEM analysis thereof show that through 3-months preloading after the subgrade filling, the settlement still develops and the effect of the post-construction settlement is not eliminated completely; hence, it takes a long time to finish the development of subgrade settlement after construction.

关 键 词：高速铁路 路基沉降 实测 有限元 

分 类 号：U213.1[交通运输工程—道路与铁道工程]