▎ 摘　　要

NOVELTY - The structure has a tunnel main body whose lower end is provided with a base layer (2). A lower surface of the base layer is connected with a drain base (3). An outer surface of a waterproof layer (4) is connected to a concrete layer (5) and a non-woven geotextile layer (6) on a side surface. A composite plate layer (7) is provided on a surface of one side surface of an outer side of the non-graphene layer. A waterproof layer of a coiled material is connected on the side surface on the composite board layer. An outer portion of the waterproof layer is fixed with a buffer component (9). A water filtration component (10) is arranged on the left side of a left end of the tunnel body. USE - Tunnel buffer multi-layer anti-drainage structure for ensuring tunnel does not cause disease caused by leakage of water, dangerous and driving safety, corrosion of equipment in hole, water-proof and drainage measures taken by reducing the service life of the structure. ADVANTAGE - The service life of the first spring and the second spring is prolonged, the whole structure greatly reduces the impact force of the water in the tunnel rock layer, so as to prolong the life time of the tunnel main body. The first sealing sleeve of the rubber material can respectively seal the first and second springs, so that the rusting time of both the springs is prolonged and the time point of the two springs is extended. The filter tank in the first water tank can filter the particle impurities in the water, and the filtered water can be recycled, saving the water resource. DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of tunnel buffer multi-layer anti-drainage structure. 1Tunnel main body 2Base layer 3Drain seat 4Waterproof layer 9Buffer assembly 10Water filtering component