成贵客运专线采空区地质选线思路与实践  

Thoughts and Practice on Geologic Route Selection in Goaf Area on Chengdu-Guiyang Passenger Dedicated Line

作　　者：杨英[1] 

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《高速铁路技术》2016年第5期56-59,共4页High Speed Railway Technology

摘　　要：成贵客运专线地质条件极为复杂,采空区工程地质问题突出,对线路走向影响较大。文章针对本线采空区特点进行分析,提出采空区地质选线原则和思路,并应用于宜宾至威信段的线路走向比选,选择出最优线路方案。通过对宜宾至威信段5个线路方案的地质条件对比,尤其对影响方案关键因素的采空区开展专项地质专题工作,围绕采空区的绕或治进行了较大范围的方案比较,为线路方案的决策奠定了基础。经研究分析,最终选择了绕避大型采空区的经长宁、兴文方案(Ⅰ方案),从而最大限度地降低了工程风险。The geological condition Chengdu-Guiyang passenger dedicated line is complex and engineering geological problems in goaf area are obvious,which intensively impacts on the line. After analyzing the characteristics of the goaf,the ideas and principles of route selection in goaf area are put forward. By comparison,the optimal route scheme for Yibin-Weixin section is made. Comparing geological conditions of the five line scheme in Yibin-Weixin section,especially carrying out special topic geological work in goaf affecting the line,the selection of treating or avoiding goaf is made on large area for the route decision. By the research and analysis,Scheme I which bypasses large mined out area through Changning and Xingwen is finally selected,thus maximally reduces the project risk.

关 键 词：成贵客运专线 采空区 地质选线 实践 

分 类 号：U212.22[交通运输工程—道路与铁道工程]