焦柳线洛满至塘豹段大机捣固作业管理标准研究  

Study on the Large Maintenance Machine Tamping Operation Management Standard for Jiao-Liu Railway Luoman to Tangbao Section

作　　者：彭瑞 PENG Rui(China Railway Nanning Bureau Group Co.,Ltd.,Liuzhou railway maintenance and management section,Liuzhou Guangxi 545007,China)

机构地区：[1]中国铁路南宁局集团有限公司柳州工务段,广西柳州545007

出　　处：《铁道运营技术》2024年第3期41-44,共4页Railway Operation Technology

摘　　要：焦柳线洛满至塘豹段具有山区铁路的显著特征,线路的桥隧、小半径曲线多,维修保养难度大。经研究,采用改良型轨道质量指数(MTQI)来评价轨道质量。基于对不同基础、不同线形轨道动态质量的抽样采集分析,得到了六种路基构造特性下线路的劣化趋势,结合当前大机捣固能力,推导出大机捣固作业阈值,有助于轨道管理部门对山区铁路线路制定更优捣固计划,提高经济效益和捣固效果。The section from Luoman to Tangbao of Jiaoliu Railway is a mountainous railway with many Bridges and tunnels and small radius curves,which is difficult to maintain.Modified track quality index(MTQI)is used to evaluate track quality.Based on sampling analysis of different roadbed,different linear shape and track dynamic quality,the deterioration trend of track under six subgrade structural characteristics is ob⁃tained.Combined with the current tamping capability of large machine,the threshold value of large ma⁃chine tamping operation is derived.It is helpful for track maintenance department to make better tamping plan for mountainous railway,which is helpful to improve economic benefit and tamping effect.

关 键 词：山区铁路 大机捣固 轨道质量 捣固计划 

分 类 号：U216.42[交通运输工程—道路与铁道工程]