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  2023, Vol. 42 Issue (12): 3010-3019    DOI: 10.13722/j.cnki.jrme.2023.0377
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Study on supporting time of double-layer primary support for super-large section tunnels in brittle rock#br#
HE Jiaxin1,HE Shaohui1,LIU Xiabing2,MA Jianfei1
(1. School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;2. Guangdong Hualu Transport Technology Co.,Ltd.,Guangzhou,Guangdong 510420,China)
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