ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2017, Vol. 37 ›› Issue (7): 907-911.

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CHEN Shaohua1,LI Zhiping2,MA Dong3   

  1. (1. China Railway First Survey & Design Institute Group Co., Ltd., Xi’an 710043, Shaanxi, China;2. China Railway Tunnel Group Co., Ltd., Luoyang 471000, Henan, China;3. China Railway 16th Bureau Group Co., Ltd., Beijing 100018, China)
  • Online:2017-07-20 Published:2017-07-26