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| Research 0n the Expansion Plan for Yangang to Guangtong of Chengdu-Kunming Railway |
| YU Hao-wei,FANG Yi |
| China Railwav Eryuan Engineering Group Co．Ltd，Chengdu，Sichuan 610031，China |
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Abstract Research purposes：As an infrastructure，railway investment is huge，we should pay particular attention to the top-level design．For the reconstruction of existing railway，how to choose the suitable scheme put in the first problem before the builders，reasonable or not will directly affect the implementation effect and the success or failure of railway construction． In this paper， we take Yangang to Guangtong section as an example，described the necessity and the research ideas of its expansion，detailed study of the different expansion plan.
Research conclusions：(1)The existing Chengdu-Kunming Railway’s technical standard is very low, it's transport capacity can not meet demand，urgent need to capacity expansion．(2) Single expansion plan and construction of the second program have range of issues，such as does not meet the traffic requirements，low speed ,long travel time，low utilization of existing lines，should not be used．(3)As the main channel of communication between northwest, Sichuan and Yunnan，ASEAN，South Asia，as the case of investment is not very different，press New 200 km／h double standard on the Chengdu-Kunming Railway for capacity expansion is appropriate． (4)The research results can be applied to similar existing lines expansion and speed improvement projects.
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Received: 15 August 2013
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2013, Vol. 30 
