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软弱围岩偏压小净距隧道施工技术

向龙,王俊,唐锐,唐协, 周文墨

Sichuan Architecture（2020）

Cited 1|Views23
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Abstract
圆木沟隧道主要穿越软弱板岩、炭质板岩,围岩遇水易软化.加之小净距、洞身偏压等不利特点,该隧道在施工过程中容易出现初期支护侵限、钢拱架扭曲等大变形现象.因此,文章以圆木沟隧道初期支护侵限为例,对软弱围岩偏压小净距隧道施工方法进行分析总结.研究结果可供类似工程参考.
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