特大断面硬岩隧道爆破开挖技术研究--以丰宁隧道Ⅱ级围岩段为例
李达昌， 张俊兵， 孙伯乐， 郑保才
Study on Blasting Technology for Large Crosssection Hard Rock Tunnels: Case Study on Fengning Tunnel
LI Dachang, ZHANG Junbing, SUN Bole, ZHENG Baocai
隧道建设
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2015, (8): 846
-850
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DOI: 10.3973/j.issn.1672-741X.2015.08.016
