Water stop structure suitable for deformation joints of bottom plate and side wall of pump pit of pump room of water plant

The utility model discloses a waterstop structure suitable for a deformation joint of a bottom plate and a side wall of a pump pit of a pump room of a water plant, which comprises a flexible waterstop assembly and a steel plate waterstop piece which are arranged in a crossed manner, the flexible waterstop assembly is arranged in the deformation joint of a main body structure, and the steel plate waterstop piece is fixed on the surface of the main body structure; asphalt hemp threads are arranged at the intersection of the steel plate water stop piece and the flexible water stop assembly. Polysulfide sealant is arranged at the two ends of the flexible water stop assembly respectively. The utility model has the advantages that the structure is simple, the site construction is convenient, the manufacturing cost is low, and the water stopping effect is good; steel bars of the main body structure, especially stirrups of the side wall column, are not broken, so that the safety of the main body structure is ensured;