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Conversion Timing of Tunnel Excavation Methods in an Upper-Soft and Lower-Hard Stratum Based on Displacement Direction Angle Theory: Case Study

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  • Release time:2019-04-25

  • Journal:International Journal of Geomechanics

  • Co-author:Wei Wang;Mingjun Hu;Hengwen zhang; Xuemin Zhang

  • Document Type:J

  • Translation or Not:no

  • Date of Publication:2019-02-07

  • Included Journals:SCI

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