Research on the Key Construction Technology of Large-Section and Small-Spacing Tunnels in Horizontal Layered Soft Rock
Combined with engineering examples,this paper discusses the key construction technology of large-section and small-spacing tunnels in horizontal layered soft rock.Firstly,it introduces the main engineering back-ground of the tunnel.Then,it introduces the detailed process and requirements of the construction of the single-side guide pit method and the double-side guide pit method of the tunnel respectively,and puts forward the treatment measure of emergency plans.Combined with the characteristics of the tunnel,it puts forward the content that should be monitored and measured specifically in the process of tunnel construction.Finally,it puts forward specific targeted measures from the aspect of construction safety design,which can provide reference for similar tunnel projects.
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