Piping water stop and grouting device and use method thereof

Abstract

The invention provides a piping water stop and grouting device which comprises an outer pipe. An inner pipe is arranged in the outer pipe. The front end of the inner pipe extends outwards to the frontend of the outer pipe. The piping water stop and grouting device further comprises a detachable air bag. The air bag is cylindrical. The two ends of the air bag are provided with a first butt joint sleeve and a second butt joint sleeve correspondingly. The first butt joint sleeve is connected with the front end of the outer pipe. The second butt joint sleeve is connected with the front end of theinner pipe so that the air injection section between the outer pipe and the inner pipe can communicate with the air bag. A grouting channel which is through is arranged at the center of the inner pipe. An air distribution cylinder communicating with the air injection section is arranged at the rear end of the outer pipe. A slide hole is formed in the rear end of the air distribution cylinder. A seal ring is arranged on the inner wall of the slide hole. The rear end of the inner pipe penetrates through the slide hole to be in sealing fit with the seal ring so that air tightness can be ensuredduring telescopic movements of the inner pipe. The air distribution cylinder is further provided with an air supply port communicating with an inner cavity of the air distribution cylinder. The pipingwater stop and grouting device has the advantages that positioning is precise, the strength of a pipe leaking position can be improved by squeezing the inner wall of a channel at a leaking point, thewater volume is reduced, the leaking blockage reliability is ensured.

Description

technical field [0001] The invention relates to the field of municipal water conservancy emergency rescue, in particular to a piping water stop grouting device and a method for using the same. Background technique [0002] Piping refers to the phenomenon that under the action of seepage, the fine particles in the soil are taken away by the groundwater from the gaps of the coarse particles, resulting in the formation of seepage channels through the soil, resulting in the collapse of the soil. When piping occurs, if it is not dealt with in time, the cavity will expand in a short period of time, and it will be unstoppable, resulting in the collapse of the embankment. When piping occurs, the water surface will be turned upside down. As the upstream water level rises, the duration will prolong, and the danger will continue to worsen. A large amount of water gushes up and overturns the sand, which destroys the foundation soil skeleton of embankments and sluices, expands the channe...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned method is prone to leak points and is not easy to determine when plugging. The geotextile bag can only enter the piping channel at the piping inlet position by the water flow, and it is difficult to deliver the geotextile bag deep to the piping channel section, and at the same time complete the plugging at the piping inlet. Finally, when the high polymer material is injected from the top of the dam body through the hollow steel pipe, it is difficult to effectively align the hollow steel pipe with the piping channel, especially when the piping channel is bent in the dam body, it is very easy to cause the injection position of the polymer material to be wrong , which affects the reliability of the ferry and is prone to safety hazards

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