Application on Tunnel Construction Technology of Flood Diversion Project Under Poor Geological Conditions
The spillway can effectively improve the flood in the river basin,and in the construction of the spillway project,the treatment of adverse geological conditions is a prerequisite for smooth construction.Taking the tun-nel section of a spillway project in Leshan city as the research object,firstly,an analysis was conducted on the ad-verse geological conditions encountered during the construction process.The treatment measures such as active fault zone,fault fracture zone,large deformation of soft rock,karst seepage,water inrush,mud influx,preven-tion of slope instability and reverse drainage are put forward and applied.The monitoring measurement results show that the deformation of the tunnel section gradually stabilizes,indicating that this technology can provide effective reference for the construction of similar spillway projects in the future,and provide practical examples for large-scale water conservancy engineering construction.
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