Double-sided combined reverse-sticking type middle-buried water stop with simple structure

The invention discloses a double-sided combined reverse-sticking type middle-buried water stop with a simple structure. The double-sided combined reverse-sticking type middle-buried water stop comprises a fixed part and a deformation part; the fixed part is fixed in a structural base layer; the deformation part is fixed in a settlement joint; the deformation part is a reserved deformation semicircular groove; the fixed part and the deformation part each comprise a plastic sheet; self-adhesive layers are arranged on the two faces of each plastic sheet, and the self-adhesive layers are covered with reverse-sticking coating films. The structural films of the reverse-sticking type middle-buried water stop react with concrete, so that a long-term stable chemical bonding interface is formed, and a skin type waterproof structure can be formed, and therefore, a water seepage channel is blocked, water stop protruding ribs are abandoned in an optimized manner, a waterstop area and an anchoring area are combined, the st