既有线开行27t轴重通用货车线桥适应性分析与强化改造对策  

Adaptability Analysis of Existing Railway Tracks and Bridges to 27t Axle Load General Freight Train and Its Strengthening Reconstruction Countermeasures

作　　者：谷牧 马战国 许良善 刘吉元 付兵先 陈锋 潘振 GU Mu;MA Zhanguo;XU Liangshan;LIU Jiyuan;FU Bingxian;CHEN Feng;Pan Zhen(Railway Engineering Research Institute,China Academy of Railway Sciences Group Co.Ltd.,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081

出　　处：《铁道建筑》2019年第5期1-5,14,共6页Railway Engineering

基　　金：中国铁路总公司科技研究开发计划(P2018X011);太原铁路局科技研究开发计划(2015G01)

摘　　要：对既有线开行27 t轴重通用货车条件下线桥结构适应性进行了分析,指出既有线在主型配置、结构状态正常条件下,可以满足少量开行27 t轴重货车的要求。从保证27 t轴重货车长期运行安全、减少养护维修工作量的角度考虑,须对轨道、桥梁结构逐步强化提升,对路基、隧道结构进行病害整治。开行27 t轴重货车前,须对影响运营安全的线路基础设施进行强化改造;常态化开行条件下,须逐步对疲劳与耐久性能降低的线路基础设施进行改造。This paper analyzed the adaptability of the existing railway tracks and bridges to 27 t axle load general freight trains.It is pointed out that under the condition of main-type conf iguration and normal structure state,the existing railway can meet the operation requirements of a few 27 t axle load freight trains.From the perspective of maintaining the long-term operation safety of 27 t axle load freight trains and reducing the maintenance workload,it is necessary to gradually strengthen and upgrade the track and bridge structures,and treat diseases of roadbed and tunnel structures.Before operation,it is necessary to strengthen reconstruction the line infrastructures that affect operation safety.Under normal operation conditions,it is necessary to gradually reconstruct the railway infrastructures with reduced fatigue and durability.

关 键 词：既有线 27t轴重通用货车 基础设施 适应性 强化改造 

分 类 号：U239.4[交通运输工程—道路与铁道工程]