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In view of the poor seepage control effect, slow construction progress and high investment cost of the existing sluice vertical impervious core structure, a new type of anti-seepage steel sheet pile structure for foundation slab is proposed in this paper. The new structure is formed by connecting multiple steel sheet piles, the steel sheet pile is in “U” shape, the steel sheet pile body forms horizontal extension edges on both sides, the two extended edges form two reverse hooks at the end, and the clasp forms an inward inclined plane at the connection opening. The steel sheet pile is used as the vertical anti-seepage body, and the structure of the steel sheet pile is optimized. The connection end is connected by the reverse hook. The gap between the connection end faces is small and the anti-seepage performance is good. The structure reduces the seepage head, reduces the saturation line, and improves the stability of sluice foundation and sluice.

New Structure of Impervious Steel Sheet Pile in Foundation Slab