Shock absorption and leakage prevention tunnel lining structure

The utility model relates to a shock-absorbing and anti-seepage tunnel lining structure which comprises a primary support (1) and a secondary lining (3), adjacent secondary lining plates are spaced by a certain distance to form an anti-seismic and anti-seepage groove, a special-shaped steel plate (12) is arranged in the anti-seismic and anti-seepage groove, and the two ends of the special-shaped steel plate (12) are hinged to the two end faces of the adjacent secondary lining plates respectively. The deformability of the special-shaped steel plates increases the degree of freedom between the structures, and the shock resistance of the tunnel lining structure is improved; and meanwhile, the maintenance accuracy of the water leakage position of the tunnel is improved through detachable hinged connection between the secondary lining plates, and the maintenance difficulty of the tunnel is reduced. The structure further comprises a reinforcing annular drainage pipe (8) which is arranged in the anti-seismic and ant