土质路基双块式无砟轨道混凝土支承层设计分析  

Analysis of Designing Concrete Supporting Layer of Bi-block Sleeper Track in Soil Foundation

作　　者：颜华[1] 翟婉明[2] 李春霞[1] 罗震[2] 

机构地区：[1]中铁二院工程集团有限责任公司,成都610031 [2]西南交通大学,成都610031

出　　处：《铁道工程学报》2007年第S1期30-34,共5页Journal of Railway Engineering Society

摘　　要：研究目的:通过理论分析与多方案优化比选,研究双块式无砟轨道结构受力与变形特性,进而选择合理的混凝土支撑层型式及结构设计参数。研究结果:建议双块式无砟轨道混凝土支撑层的设计方案为:混凝土支撑层伸缩缝与道床板伸缩缝错开设置,厚度为30 cm,采用C20混凝土浇筑,且与道床板通过门形钢筋连接。Research purposes:The characteristics of stress and deformation of the bi-block sleeper track are researched by theoretical analysis and optimizational comparision,and then proper format and structure parameters for design of concrete supporting layer are chosen. Research results:The design project of concrete supporting layer for bi-block sleeper track is suggested: expansion joints of concrete supporting layer and bi-block sleeper track slab should be staggered,and the thickness of it is 30 cm,using concr...

关 键 词：双块式无砟轨道 混凝土支承层 数值分析 结构设计 

分 类 号：U213.244[交通运输工程—道路与铁道工程]