有轨电车整体道床路基病害与失效模式分析  

Analysis on Diseases and Failure Mode of Whole Track Subgrade of Tramcar

作　　者：杜先照 杜浩[2] 

机构地区：[1]武汉地铁集团有限公司,湖北武汉430030 [2]同济大学道路与交通工程教育部重点实验室,上海市201804

出　　处：《城市道桥与防洪》2015年第5期38-42,9,共5页Urban Roads Bridges & Flood Control

摘　　要：对有轨电车整体道床-路基的病害类型及其成因进行了归纳分析,并从土质条件、路基含水率、物理力学条件等角度对路基病害的影响因素进行了研究;在对整体道床失效模式分析的基础上,提出了疲劳荷载作用下支承板底的容许弯拉应力建议值。The article induces and analyzes the disease type and its causes of the whole track subgrade of tramcar, and studies the influence of disease on subgrade from the angles of soil conditions, subgrade moisture content and physical and mechanical conditions. On the basis of analyzing the failure mode of the whole track, the article puts forward the proposed permissible bending tensile stress at the bottom of bearing plate under the fatigue load.

关 键 词：轨道交通 整体道床 路基 病害 失效模式 

分 类 号：U482.1[交通运输工程—载运工具运用工程]