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| Railway Alignment in Section between Xi＇an and Shanchuan of Xi＇an － Chengdu Passenger Dedicated Line in Daba Mountain Area |
| JING Ji － chang，JU Xiao － qiang |
| China Railway First Survey and Design Institute Group Ltd． ，Xi＇an，Shanxi 710043，China |
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Abstract Research purposes: This paper comprehensively analyzes and studies the geological conditions of the Daba mountain area in the research range for the Xi＇an － Chengdu Passenger Dedicated Line to define the railway alignment in the area with the better geological condition．
Research conclusions: The summariy was made on the characteristics of geological conditions in Daba mountainous area ，a number of the optionalconstruction plans of the Xian － Chengdu Passenger Dedicated Line were proposed，and the basic ideas and principles of the railway alignment were offered． The comparative analysis of the different construction plans in geological conditions showed the CK Plan was better than the others in hydrogeological conditions and engineering geology conditions．
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Received: 11 December 2010
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2011, Vol. 28 
