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| Some Cognitions and Thinkings about the Specific Geo - environmental Problems along the Sichuan - Tibet Railway |
| XU You - ding1，YAO Ling - kan2 |
| (1. China Railway Eryuan Engineering Group Co. Ltd， Chengdu， Sichuan 610031， China; 2. Southwest Jiaotong University，Chengdu，Sichuan 610031，China) |
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Abstract Abstract: Research purposes : To propose the cognition about the special Geo - environmental problems along the Sichuan - Tibet Railway and the concise key points of tackle hard - nut problems in science and technology. To provide the science and technology support for the successful building and safe operation of the Sichuan - Tibet Railway. Research conclusions ： The junctional zone of Gangdise - Nyenchen Tanglha active continental margin and northern Himalayan fold belt，is a region in which has never been built any railways before，facing the specific Geo – environmental problems such as，inner dynamic effect of tlie Yarlung Zangbo suture zone，glacier lake outburst in the maritime glacier zones and glacial debris flow，etc. The Sichuan - Tibet Railway passes through three major suture zones，including the Yarlung Zangbo suture zone，so we need to pay attention to influence on the Sichuan - Tibet Railway affected by the big earthquakes occurred on the Himalayan arc，and suggest carrying out the study on crustal stress， measuring ground temperature with the antecedent project. To the problems of glacier lake outburst in the maritime glacier zones and glacial debris flow， study on the basic theory of formation mechanism， motion feature should be enhanced， and the strategy of higher elevation design to avoid the damage of valley disaster chain should be studied as well.
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Received: 21 November 2016
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2017, Vol. 34 
