Disposal Technology for Water Inflow in Expressway Tunnel
This paper analyzes the problems of initial support intrusion and water influx in karst and fractured sections of expressway tunnels,using Guangshan No.1 Tunnel as the background.In order to ensure construction safety and engineering quality,effective measures such as drainage,radial grouting small conduits,advanced large pipe sheds,cavity sealing,and arch replacement were taken to reasonably arrange the sequence of construction.The deformation of surrounding rock and sudden water inflow were effectively controlled and dealt with,laying the foundation for subsequent construction.
expresswaytunnelviolation disposaldisposal of karst water inflow
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