梁端转角对轨道结构受力的影响规律分析
- 格式:pdf
- 大小:275.62 KB
- 文档页数:3
无砟轨道线路维护中与温度力相关的问题及对策刘丙强【摘要】高速铁路无砟轨道结构受力十分复杂,温度力是其中之一.温度力所造成的无砟轨道结构病害越来越多,且存在安全风险.本文针对桥梁地段和路基地段的CRTSⅠ型板式、CRTSⅡ型板式和双块式无砟轨道结构,重点对由温度力所引发的结构伤损问题及其成因进行分析,并结合实际情况提出相应的预防整治技术对策,为现场工程技术人员养护维修管理提供借鉴.%T he forces of high speed railway ballastless track structure are very complex,and the temperature force is just one of them. T here are more and more diseases and security risks in the ballastless track caused by the temperature force. In thispaper,according to the CRTS Ⅰ slab ballastless track and CRTS Ⅱ slab ballastless track and the double blocks ballastless track structure on the bridge and subgrade section,the structure damage problems caused by the temperature force as well as its causes were analyzed emphatically. Also,combining with the actual situation,the correspondent prevention and control technology countermeasure were put forward to provide a reference for the maintenance and management of technicists.【期刊名称】《铁道建筑》【年(卷),期】2017(000)006【总页数】5页(P125-129)【关键词】高速铁路;无砟轨道;温度力;结构伤损;养护维修【作者】刘丙强【作者单位】中国铁路总公司运输局,北京 100844【正文语种】中文【中图分类】U213.2+12;U216.4目前,我国高速铁路正线无砟轨道结构型式主要有CRTSⅠ型板式、CRTSⅡ型板式、CRTSⅢ型板式和双块式无砟轨道[1-5]。