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| 2013, Vol. 50(1): 67-72 DOI: | ||
| Numerical Analysis of the Scheme for the Portal Excavation of a Shallow Tunnel in a Grade IV Rock Mass | ||
| 1 State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology 2 School of Mechanics and Civil Engineering, China University of Mining and Technology | ||
| Received null Revised null | ||
| Supporting info | ||
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