速度160 km/h全地下隧道市域快轨线路钢轨打磨车应用研究  

Research on the application of rail grinding vehiclesunder urban express railway lines with a speed of 160km/h in fully underground tunnels

作　　者：吴晨恺 翟胡超 程志全 魏志恒 WU Chenkai;ZHAI Huchao;CHENG Zhiquan;WEI Zhiheng(Guangzhou Metro Group Co.,Ltd.,Guangzhou Guangdong 510220,China;Urban Rail Transit Center of China Academy of Railway Sciences Group Co.,Ltd.,Beijing 100081,China)

机构地区：[1]广州地铁集团有限公司,广东广州510220 [2]中国铁道科学研究院集团有限公司城市轨道交通中心,北京100081

出　　处：《现代城市轨道交通》2024年第3期70-75,共6页Modern Urban Transit

摘　　要：广州地铁所辖的市域快轨线路是国内首条速度160 km/h的全地下隧道市域快线,在运营过程中出现不同程度的钢轨波磨病害,据统计易出现钢轨波磨病害区段为长大区间直线区段、进出站台时的加减速区段、部分曲线区段,一般平均波深为0.07 mm,波深超过0.04 mm的钢轨波磨一般延展长度为1~1.5 km。针对此问题,文章对新的打磨需求进行总结分析,对GMC-20国产化钢轨打磨车开展应用研究,通过优化打磨模式,采用打磨3遍和抛光1遍的方法,在单次作业点内可完成1~1.5 km钢轨打磨作业,能够快速高效的消除钢轨波磨病害,提高打磨效率和打磨质量,同时打磨效果能满足运营需求。The urban express railway line of Guangzhou metro represents China's first fully underground tunnel urban express line,boasting a speed of 160 km/h.However,during its operation,different degrees of rail corrugation damage have been observed.According to statistical analysis,such wear is prone to occur in long straight sections,acceleration and deceleration sections near platforms,and in certain curved sections.Typically,the average depth of corrugation on steel rails is generally 0.07 mm,and the extended length of rail corrugation exceeding 0.04 mm is generally 1-1.5 km.To address this issue,this article summarizes and analyzes the new grinding requirements and conducts application research on the GMC-20 rail grinding vehicle produced in China.Through the optimization of grinding methods and employing a sequence of grinding three times followed by burnishing once,the 1-1.5 km rail grinding operation can be completed within a single operation point.This approach enables the swift and effective elimination of rail corrugation damage,enhancing both grinding efficiency and quality to meet operational needs.

关 键 词：市域快轨 速度160 km/h 全地下隧道 钢轨波磨 钢轨打磨车应用 

分 类 号：U231[交通运输工程—道路与铁道工程]