西南交通大学学报2012，Vol.47Issue(5)：719-734,16.DOI:10.3969/j.issn.0258-2724.2012.05.001
青藏高原东缘进藏高等级道路面临的挑战
Challenges in Construction of Railway and Highway from Sichuan to Tibet through Eastern Margin of Tibetan Plateau
摘要
Abstract
The construction of railway and highway to Tibet through the eastern margin of the Tibetan Plateau has started step by step as the implementation of the Western Development Strategy. The controlling problems in the construction and the corresponding key techniques need to be studied urgently. The general information of railway and highway to Tibet through the eastern margin of the Tibetan Plateau was introduced. Some new challenges in the construction were discussed, including the crossing alternate plateau and ravine terrains in the north-south direction, the long-range threat of maritime valley glaciers and the line engineering design in fault creep deformation zones. A seismic hazard control method was proposed based on the case study of Xianshuihe. In this method, simple projects are adopted to reduce loss in design of individual engineering, and the expected annual operating cost is used to the comparison and selection of schemes. Meanwhile, for routes along deep-cut river, a higher elevation design was suggested to avoid the damage of valley disaster chain. Based on the above works, the framework of extreme disaster hazard control was established for macroscopic location design to provide references for the construction of railway and highway to Tibet and the scheme demonstration for the Kangding-Nyingchi line.关键词
青藏高原东缘/高等级道路/地形障碍/环境地质灾害/风险调控Key words
eastern margin of Tibetan Plateau/ railway and highway/ topographical obstacles/ environmental geological hazards/ hazard control分类
交通工程引用本文复制引用
姚令侃,邱燕玲,魏永幸..青藏高原东缘进藏高等级道路面临的挑战[J].西南交通大学学报,2012,47(5):719-734,16.基金项目
国家自然科学基金重点项目(41030742) （41030742）
国家自然科学基金面上项目(41172321) （41172321）
铁道部科技研究开发计划课题(2011G019-B) （2011G019-B）
