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| POWER SUPPLY AND DISTRIBUTION SCHEME DURING CONSTRUCTION AT ENTRANCE OF MIHUALING TUNNEL |
| CHANG Mian-sheng，CHEN Chang-zheng |
| China Second Railway Engineering (Group)Company, Chengdu 610031 |
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Abstract The paper proposes a complete set of scheme for power supply and distribution at the entrance of the Mihualing Tunnel on Nan-Kun Railway during construction. It provides an attempt to be a kind of complete set technical design for excavating different kinds of tunnels in China,and may be summarized as reference.
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Received: 20 July 1999
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1999, Vol. 16 
