摘要
研究目的:随着国家"八纵八横"高速铁路网与地方城际快铁的持续加快建设,区别于以往困难山区和平原高铁,成渝经济圈范围内以川南城际、渝昆渝宜段、成自、成南达、绵遂内、渝万为代表的低山浅丘地形高铁建设正在有序推进。本文以建设中的川南城际为例,对以行经二线城市为主的西南低山浅丘地形的高速铁路选线设计进行总结,以指导同类型工程的选线和工程处理。研究结论:(1)新建高铁地区(枢纽)线站方案应因时因地,结合不同的地方城市规划、既有路网现状及客流运输组织需求综合比选研究,新建客运站和引入既有站均可采用;(2)低山浅丘地形一般地质不控制选线,选线的边界条件一般以地面大型构筑物为主,前期设计应在建设单位组织下做好相关专项评估及协议签订工作;(3)低山浅丘地形纵断面设计宜遵循低路堑、多桥涵、慎深填的工程布局原则;(4)在铁路投融资改革后,以地方投资为主体的项目越来越多,地方在线站布局的利益诉求及话语权也越来越重,因此在符合国家路网规划基础上,在不影响项目技术标准、投资效益的前提下,设计线站布局应充分尊重地方意见,实现地路合作共赢,和谐发展;(5)本研究成果可供低山浅丘地形的高铁项目设计工作参考。
Research purposes:With the accelerated construction of the"eight vertical and eight horizontal"high-speed railway(HSR)network and regional intercity fast rails,HSR in areas of low-mountain and shallow-hill,which is different from HSR in mountainous areas and HSR on plain,is progressing orderly.For Chengdu-Chongqing economic area,it is represented by the inter-city railway of southern Sichuan,Chongqing-Yichang Section of Chongqing-Kunming railway,Chengdu-Zigong railway,Chengdu-Nanchong-Dazhou railway,Mianyang-Suining-Neijiang railway,Chongqing-Wanzhou railway,etc.This paper takes the inter-city railway of southern Sichuan as an example,summarizes the route selection design for HSR in southwest area of low mountains and shallow hills passing through second-tier cities,so as to provide reference for the route selection and engineering treatment of the same type.Research conclusions:(1)The arrangement of route and stations for new HSR should varies by time and place,be compared and studied combining local urban planning,existing network status and transportation organization needs,either by setting new passenger stations or by leading into existing stations.(2)It is large ground structure which is critical to HSR route selection in low-mountain and shallow-hill areas,other than geological conditions.During preliminary design,relevant special assessment and agreement signing should be well done under the organization of the employer.(3)Profile design in such area is better to follow the principles of shallow cutting,more bridges&culverts and less deep filling.(4)After the reform of railway investment and financing,there are more and more local investment projects,thus the interests and voices of local investment are of great importance on the determination of route and station layout.Under the premise of matching national network plan,not affecting the technical parameters and investment benefits of the project,the local investment opinions should be fully respected when determining the route and station layout,try to
作者
卓建成
ZHUO Jiancheng(China Railway Eryuan Engineering Group Co.Ltd,Chengdu,Sichuan 610031,China)
出处
《铁道工程学报》
EI
北大核心
2019年第12期1-4,22,共5页
Journal of Railway Engineering Society
关键词
低山浅丘
铁路
选线设计
low mountains and shallow hills
railway
route selection
