Abstract：Research purposes: The Guiyang south marshalling station extension project is one of the most complicated extending works of the whole line． The locomotive facilities layout inside the marshalling station will have direct impact on the overall arrangement of the marshalling station and also on the locomotive route and distance，so it plays an important role in the quick and effective transportation organization inside the marshalling station． The study on the train organization，locomotive operation flow and existing locomotive facilities in the marshalling station is to determine a rational scheme for layout of locomotive facilities and the execution of the marshalling station extension project．
Research conclusions: Through systematic analysis of marshalling station as well as study on the layout of locomotive facilities，the conclusion indicates that the existing locomotive depot should be utilized after overhaul，sub － locomotive depot should be adopted，i． e． locomotive turnaround depot be built at Guiyang south station，and at the same time， rebuild the existing Guiyang locomotive depot． This scheme has such merits as fully utilizing existing locomotive facilities，more smooth for locomotive operation，shortening route distance，saving operation expenses，with better transition construction and preserving condition for future development．
China Railway Eryuan Engineering Group Co． Ltd． Feasibility Study on the Extension of Guiyang South Marshalling Station and Passenger Train Outer Line Project at Terminal Station ［R］． Chengdu: CREEC， 2005．
China Railway Eryuan Engineering Group Co． Ltd． Preliminary Design ( revised ) for the Extension of Guiyang South Marshalling Station and Passenger Train Outer Line Project at Terminal Station ［R］． Chengdu: CREEC，2005．
China Railway Eryuan Engineering Group Co． Ltd． Final Drawing of the Extension of Guiyang South Marshalling Station and Passenger Train Outer Line Project at Terminal Station ［Z］． Chengdu: CREEC， 2009．
［4］ 中铁二院工程集团有限责任公司． 贵阳南编组站施工过渡工程 I 类变更设计［Z］． 成都: 中铁二院工程集团有限责任公司，2009．
China Railway Eryuan Engineering Group Co． Ltd． First Class Alteration Design for Transition Construction of Extension of Guiyang South Marshalling Station ［Z］． Chengdu: CREEC，2009．
［5］ TB 10004—2008，J 833—2009，铁路机务设备设计规范［S］．
TB 10004—2008，J 833—2009，Railway Locomotive Facilities Design Standard ［S］．
Yang Jian． Discussion on Desing Concept and Method for Railway Station Yard and Terminal ［J］． Journal of Railway Engineering Society，2010( 6) : 102 － 108．
Peng Qiang，Yin Wenzhi，Wang Ciguang． Optimization of Transport Organization during the Rebuilding Period of Guiyang South Station ［J］． Chinse Railways，2010 ( 2) : 49 －52．
2011, Vol. 28 
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