Design of Pre-support Parameters for Mahuashan Tunnel Pipe Shed
There are many ways to enter tunnels with weak surrounding rock,and pipe shed pre support is widely used for tunnel entry.Although there are many applications,the research on the selection of pre support parameters for pipe sheds is not systematic enough.Through research and analysis,this paper establishes a complete method for selecting the main parameters of pipe shed pre support.By applying it in specific projects and combining it with monitoring data,it shows that the support effect is good and the design parameters are scientifically reasonable,creating favorable conditions for rapid tunnel construction.
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