京沪高速铁路饱和松软土地基抗震加固关键技术探讨  

Discussion on the Key Seismic Hardening Technologies for Saturated Weak Soil Foundation of Beijing-Shanghai High-speed Railway

作　　者：刘先峰[1] 蒋关鲁[1] 李华明[1] 顾湘生[2] 

机构地区：[1]西南交通大学,成都610031 [2]铁道第四勘察设计院,武汉430074

出　　处：《铁道工程学报》2007年第S1期68-72,共5页Journal of Railway Engineering Society

基　　金：铁道部科技研究开发计划项目(2003G06)

摘　　要：研究目的:为配合京沪高速铁路的建设,解决在饱和松软土地基上修筑高速铁路的难题,铁道部批准开展《高速铁路液化土地基加固技术的试验研究》项目,目的是选取合理有效的饱和松软土地基、路基加固措施,控制路基地基的稳定性和沉降变形。研究结果:碎石桩和CFG桩桩网结构地基均明显减小了因地基液化引起的响应加速度放大作用,均能够有效地减小地基路基在地震条件下的沉降及不均匀沉降,提高地基路基的整体抗震性能。Research purposes:In coordination with construction of Beijing-Shanghai High-speed Railway to overcome the hard difficulties of building high-speed railway on saturated weak soil foundation,Ministry of Railways approves the project of"Test and Research on Reinforcing Technology for Liquefied Soil Foundation of High-speed Railway"for the purposes of selecting and taking the rational and effective measures for reinforcing saturated weak soil foundation and subgrade in order to control the stability and settle...

关 键 词：高速铁路 饱和粉土 液化 大型振动台模拟试验 碎石桩桩网结构地基 CFG桩桩网结构地基 

分 类 号：U238[交通运输工程—道路与铁道工程]