摘要
结合目前城市轨道交通实际情况,对碎石道床和整体道床进行了比较,分别从梁的应力、基础沉降量及预应力混凝土梁徐变上拱度三方面入手进行了分析,指出应根据城市轨道工程的地质、施工条件等综合考虑来决定采用哪种道床。
Based on the current actual urban rail transit condition,it makes a comparison on the gravel ballast bed and overall ballast bed from three aspects of beam stress,foundation settlement,and prestressed concrete beam deflection,and points out that the ballast bed determination should be according to the geology and construction conditions of urban rail transit.
出处
《山西建筑》
2011年第12期149-150,共2页
Shanxi Architecture
关键词
轨道交通
碎石道床
整体道床
沉降量
rail transit
gravel ballast bed
overall ballast bed
settlement
