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| 2013, Vol. 50(4): 68-75 DOI: | ||
| Experimental Study of Stress Release Using a Pilot Heading for a Highly Stressed Soft-Rock Tunnel | ||
| （1 Mengxi-Huazhong Railway Co. Ltd., Beijing 100070; 2 Taiyuan-Zhongwei-Yinchuan Railway Co. Ltd., Xi'an 730050; 3 Engineering Management Centre, China Railway Corporation, Beijing 100844） |
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| Received null Revised null | ||
| Supporting info | ||
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