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| Analysis of Site Selection of Abandoned Dregs Field for Mountain High－speed Railway |
| WANG Ming－hui1，JIANG Shu－ping1，ZHANG Qiao1，JIN Yan2 |
| 1． Chongqing－Wanzhou Railway Co． Ltd，Chongqing，400014，China; 2． China Railway Eryuan Engineering Group Co．Ltd，Chengdu，Sichuan 610031，China |
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Abstract Research purposes:In the construction process of mountain high － speed railway，a large number of abandoned dregs are produced because of the complex terrain and high design criteria，and it has a big effects on the construction cost，environmental protection，construction period and construction safety． As the principles of the site selection and design were implemented improperly，some previous designs had to be changed in construction stage to produce the big wastes of the manpower and material resources，even bring about the hidden safety danger． The 90% tracks of Yichang － Wanzhou Railway are located in the mountain and hill areas，with crossing some forest and water resource areas． How to reasonably select the site of the abandoned dregs field and how to design it are the very important works in the construction process of the mountain high － speed railway．
Research conclusions: Based on the features of the Chongqing － Wanzhou Railway，it is concluded from the study:(1) The abandoned dregs field for the mountain high － speed railway should occupy the farmland as less as possible，and it should keep far away from the residential area and produce the less traffic interference．(2) The geological survey and protection works should be well done to get rid of the geological disasters like landslide．(3) The filling dreg field should be adopted as much as possible if the condition is allowable because it serves a double． The mountain gully or mountain foot should be selected as the site of the dreg field because it uses less land and is easy for delivery the dreg．The research result can provide the reference to the similar works．
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Received: 10 September 2012
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2013, Vol. 30 
