Underground backwater structure water-stop grouting bar
A water-stop and back-water technology, applied in infrastructure engineering, protection devices, buildings, etc., can solve the problems of long operation time, inconspicuous construction effect, unsuitable for emergency construction operations, etc., and achieve the effect of short operation time and quick effect.
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] see Figure 1-5 , the present invention provides a technical solution: a water-stop grouting rod for an underground backwater structure, including a water-stop grouting pipe 1, a nut 2, a metal casing 3, an expansion spring casing 4, a one-way stop valve 5, and a grouting extension pipe 6 , Slurry hole 7, threaded mounting head 8, rubber pad 9, one-way valve 10, return spring 11, sealing ring 12, material pipe connector 13, limit ring 14, clamping hoop ...
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