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MODERN TUNNELLING TECHNOLOGY   2018, Vol. 55   Issue (4) :186-190    DOI:                                                                                                      | 
  
      
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| Optimized CRD Construction Techniques for a Super-Shallow Bored Tunnel | ||||
| (Shenzhen Municipal Engineering Corporation, Shenzhen 518034) | ||||
Copyright 2010 by MODERN TUNNELLING TECHNOLOGY 
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