Tunnel waterproof and drainage refers to the waterproof and drainage measures taken to ensure that tunnel buildings will not be damaged by water leakage, endanger traffic safety, corrode equipment in tunnels and reduce the service life of structures. It is a comprehensive work involving topography, climate, engineering strata and hydrogeology, structural scheme, construction method and material properties; The basic requirement should be prevention.
Extended data
After the construction of the tunnel, the original water balance of the mountain was destroyed, and the tunnel became a channel for groundwater to gather near the mountain. When the tunnel is connected with the aquifer and the waterproof and drainage facilities and methods of the lining are not perfect, the tunnel water disaster will inevitably occur.
Tunnel water leakage is harmful, difficult to rectify and high in cost, so it is very important to do a good job in tunnel waterproof and drainage. Tunnel waterproof and drainage can be done "nip in the bud" and get twice the result with half the effort.
In order to avoid and reduce the harm of water to tunnel engineering, tunnel workers in China have summarized it. Combination of interception, blocking and drainage, comprehensive treatment ",with molded concrete lining as the basic waterproof (water blocking) measures.
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