ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2017, Vol. 37 ›› Issue (10): 1341-1346.

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LI Zhijun   

  1. (Erchu Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China)
  • Online:2017-10-20 Published:2017-10-26