高寒地区高速铁路勘察设计技术创新与实践

Technological Innovation and Practice of Investigation and Design for High-speed Railway in Alpine Area

研究目的:我国是冻土大国,冻胀和融沉会给寒区的工程构筑物带来重大灾害影响。哈大高铁地处季节性冻土区,冻胀问题对路基的影响更大。另外,哈大高铁所处的严寒地区风雪大,如何克服接触网防(融)冰、道岔融雪(冰)、动车组融冰除雪等问题都亟待研究解决。研究结论:通过修建哈大高铁:(1)形成了具有自主知识产权的高寒地区高速铁路关键技术,实现了高寒地区铁路勘察设计成果的深化和创新;(2)填补了高寒地区高速铁路技术空白,完善了我国高速铁路修建的理论体系;(3)技术成果成功应用于哈大高铁,从根本上解决了寒区高速铁路安全运营相关技术难题,为高寒地区高速铁路建设积累了丰富的经验,也为我国高铁建设树立了典范,更为中国高铁走出国门奠定了坚实的基础。

Research purposes： Since China has large area of frozen soil in north, frost heaving and thaw settlement will bring serious disasters to engineering structures in cold regions. The Harbin - Dalian high speed railway is located in seasonal frozen soil area, and the frost heaving problem has a greater impact on the roadbed. In addition, because this cold area has the severe wind and snow, how to overcome the problems of the contact network prevention （melting） ice, the snow （ice） melting of the turnout, the melting ice and the snow removal in the EMU are urgently needed to be studied and solved. Research conclusions： （ 1 ） By building the Harbin - Dalian high speed railway, the key technology of high speed railway in alpine region with independent intellectual property rights has been formed, the deepening and innovation of railway survey and design achievements in alpine region have been realized. （2） The technical gap of high - speed railway in the alpine region has been filled and the theory system of the construction of China＇s high speed railway has been perfected. （3） The technical achievements successfully applied to Harbin -Dalian high -speed railway fundamentally solved the technical problems related to the safe operation of the high speed railway in alpine region, accumulated rich experience for the high speed railway construction in the alpine region, set a model for the construction of the high speed railway in China, and further established a solid foundation to go global for the Chinese high speed rail.