Tunnel lining construction joint

The utility model relates to a tunnel lining construction joint. The utility model belongs to the technical field of tunnel construction, the lining structure comprises a lining pre-pouring concrete layer and a lining post-pouring concrete layer, a construction joint is formed on the contact surface of the lining pre-pouring concrete layer and the lining post-pouring concrete layer; a waterproof coiled material, a waterproof plate, non-woven geotextile and a supporting concrete layer are sequentially arranged on the upstream face of the lining pre-pouring concrete layer, the upstream face of the lining post-pouring concrete layer and the upstream face of the construction joint from inside to outside. The waterproof plate comprises a panel and hollow outer protruding blocks, the outer protruding blocks are arranged on the panel at intervals, a sponge block is arranged between every two adjacent outer protruding blocks, and a bonding piece is arranged between the lining pre-pouring concrete layer and the lining