铁道标准设计2025，Vol.69Issue(2)：17-24,8.DOI:10.13238/j.issn.1004-2954.202307060008
山区铁路不良地质分区分级选线方法研究
Study on the Method of Classification and Route Selection for Unfavorable Geological Zoning of Mountain Railway
摘要
Abstract
The complex and dangerous mountainous areas in southwestern China and its neighboring areas are characterized by highly developed and widely distributed unfavorable geology,which poses significant challenges to railway planning,construction,operation and maintenance.The damage form and degree of bad geology in mountainous areas to railway engineering are controlled by its disaster-causing mechanism.The zoning and grading characteristics of disaster-causing scope are obvious,and route selection can avoid all kinds of bad geological risks from the source.By studying and analyzing the typical characteristics of exogenous bad geology and endogenous bad geology,the expression method and route selection strategy of exogenous bad geological influence zoning such as landslide,collapse,debris flow and goaf are put forward.The hazard range is mainly limited to a certain influence area.Summarized are the route selection methods of bypassing first,front filling and end digging avoiding bridge and tunnel in the case of landslide;avoiding development,riding ridge and reducing height difference in the ase of collapse;avoiding weight,rather narrow than wide,leaving enough clearance in the case of debris flow;being away from and lowering elevation in the case of goaf.This paper puts forward the expression method and route selection strategy for the classification of endogenous adverse geological effects such as karst and karst water,active faults and earthquakes,high ground temperature(water),rock burst and large deformation,harmful gases,etc.The degree of harm is mainly controlled by the deep geological structure,and the route selection method is summarized of short passage,raising elevation,near riverside,and avoiding intersection.The research results are suitable for the technical method of quantitative route selection and evaluation of unfavorable geology in mountainous railway,which can provide technical support for the evaluation of zoning and grading route selection of endogenous and exogenous unfavorable geology and the avoidance of disaster risk in complex and dangerous mountainous railway,and has broad application prospects.关键词
山区铁路/地质构造/不良地质/分区分级选线/规避灾害风险Key words
mountainous railway/geological structure/unfavorable geology/classification and route selection/avoiding disaster risk分类
交通工程引用本文复制引用
陈明浩,赵晓彦,张广泽,李东,周航..山区铁路不良地质分区分级选线方法研究[J].铁道标准设计,2025,69(2):17-24,8.基金项目
国家自然科学基金项目(41672295) （41672295）
四川省重点研发计划项目(2019YFG0460) （2019YFG0460）
中铁二院工程集团有限责任公司科技研究开发计划课题(KSNQ202063,KSNQ202035,KDNQ212034) （KSNQ202063,KSNQ202035,KDNQ212034）
