CAJ | 학술논문

研究目的：黔江至张家界至常德铁路是一条客货共线、以客为主的区际干线铁路。由于沿线岩溶发育典型，工程地质构造极为复杂，工程投资大，需要对不同的坡度方案进行比选，以便确定合理的线路坡度。本文结合地形地貌、地层岩性、地质构造以及岩溶，对比13‰和18‰坡度方案的工程投资和工程风险，分析牵引质量、机车类型合理组合及其与相邻线协调匹配情况，并对运输质量与运营成本进行经济评价。研究结论：通过方案比选研究得出：（1）两个坡度方案均可满足相关运营安全要求；（2）通过工程风险及工程投资分析，18‰优于13‰坡度方案，能降低施工难度，减少运营风险，节约运营费用，建议本线坡度采用18‰方案；（3）黔张常铁路坡度方案的比选过程，可供其他类似岩溶地区铁路坡度比选参考。
연구목적：검강지장가계지상덕철로시일조객화공선、이객위주적구제간선철로。유우연선암용발육전형，공정지질구조겁위복잡，공정투자대，수요대불동적파도방안진행비선，이편학정합리적선로파도。본문결합지형지모、지층암성、지질구조이급암용，대비13‰화18‰파도방안적공정투자화공정풍험，분석견인질량、궤차류형합리조합급기여상린선협조필배정황，병대운수질량여운영성본진행경제평개。연구결론：통과방안비선연구득출：（1）량개파도방안균가만족상관운영안전요구；（2）통과공정풍험급공정투자분석，18‰우우13‰파도방안，능강저시공난도，감소운영풍험，절약운영비용，건의본선파도채용18‰방안；（3）검장상철로파도방안적비선과정，가공기타유사암용지구철로파도비선삼고。
Research purposes:Qianjiang -Zhangjiajie -Changde Railway is a regional trunk railway,shared by both passenger and freight trains,but mainly employed for passenger trains.Because of the typical karst development along the railways,the geological construction is very complicated,and the project investment is huge.Thus,different gradient schemes should be compared and selected,in order to determine the most reasonable gradient for the railway. Incorporated with the geological features along the railway,the project investment and risks of 1 3‰ and 1 8‰ gradient schemes were compared and selected.The tractive tonnage,reasonable combination of locomotive types and their compatibilities with the nearby railways were analyzed.Additionally,the transport quality and operating costs were economically evaluated. Research conclusions:We can draw the following conclusions through comparing and selecting the schemes:(1 )The both gradient schemes meet the relevant safety requirements for operation.(2)1 8‰ gradient scheme is better than the one of 1 3‰ due to lower project risks and investment.Therefore,1 8‰ gradient scheme is recommended.(3)The process of comparison and selection of gradient schemes for Qianjiang -Zhangjiajie -Changde Railway could be employed as a reference for comparison and selection of gradient schemes of railways in karst regions.