软弱围岩大跨度扁坦隧道修筑关键技术探讨

Discussion on the critical technique in the construction oflong-span flat tunnel at the weak wall rock

在阐述国内外隧道修建技术及研究现状的基础上,探讨了软弱围岩大跨度扁坦隧道修筑的关键技术。

Based on the domestic and foreign technology of tunnel construction and the present conditions of research, this article discusses the critical technique in the construction of long-span flat tunnel at the weak wall rock.