青藏铁路昆仑山越岭地段地质选线  

Geological Selection of Route in Crossing-mountain Area of Kunlun Mountain along Qinghai-Tibet Railway

作　　者：刘双进[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043

出　　处：《城市道桥与防洪》2008年第1期6-8,共3页Urban Roads Bridges & Flood Control

摘　　要：青藏铁路昆仑山越岭地段地处青藏高原腹地,地形起伏大,山坡陡峻。坡面破碎,植被稀少,以寒冻风化地貌为主。多年冻土条件复杂,构造发育.不良地质现象多发,对于如何在越岭地段进行工程地质选线的勘察工作,是青藏铁路勘察的重点。该文首先介绍了这段线路的比选方案,然后对昆仑山越岭地段的地质条件进行了分析,主要包括:地层岩性、多年冻土、地质构造、地震、不良地质和水文地质条件等方面,并比较了不同线路的优缺点,进行了地质综合评价,最终提出了合理的地质选线意见。The crossing-mountain area of Kunlun Mountain along Qinghai-Tibet Railway lies in the hinterland of Qinghai-Tibet Plateau.Its landform rises and falls great.Hillside is cliffy,fragmentized and without vegetation.The cold and frost weathering is great in this landform with the complicated permafrost,the evolutional geologic structure and the unfavorable geological condition.It is a focal point how to carry out the surveying work of the engineering geologic route selection in the crossing-mountain area for the survey of Qinghai-Tibet Railway.The article firstly introduces the compared and selected schemes of this route,and then analyzes the geologic conditions in the crossing-mountain area of Kunlun Mountain,mainly including the unfavorable geological condition and hydrogeology condition of the stratigraphic rock,permafrost,geological structure and earthquake,and compares the advantages and disadvantages of the different routes,carries out the comprehensive evaluation of the geology,and finally puts forward the reasonable comments on the geological selection route.

关 键 词：青藏铁路 工程地质勘察 地质选线 

分 类 号：U412.243[交通运输工程—道路与铁道工程]