Grouting pipe and mold bag connecting device and machining method thereof

Abstract

The invention relates to a grouting pipe and mold bag connecting device and a machining method thereof, and belongs to the field of water conservancy and hydropower engineering technology research. The device comprises a mold bag and a grouting pipe; the grouting pipe comprises a steel pipe body, plugs, scale buckles and bases; the mold bag is sewn by a metal wire with an edge blending sewing method; the two ends of the steel pipe body are connected with the plugs respectively, the tail end of each solid plug is connected with one hollow scale buckle, the tail ends of the scale buckles are provided with the solid bases, each scale buckle comprises several scale sections connected together, and each scale section is in a circular truncated cone shape; the mold bag sleeves the grouting pipe,and the two ends of the mold bag are bound with the tail ends of the scale buckles at the two ends through iron wires respectively. The method includes the steps of grouting pipe machining, mold bagprocessing and grouting pipe and mold bag connecting. By adopting the grouting pipe and mold bag connecting device and the machining method thereof, the mold bag capable of bearing the pressure of 0.45 MPa can be produced.

Description

technical field [0001] The invention relates to a connection device between a grouting pipe and a mold bag and a processing method thereof, and belongs to the technical research field of water conservancy and hydropower engineering. Background technique [0002] In karst areas, unfavorable geological phenomena such as karst depressions, karst caves, and underground rivers often develop. To build reservoirs or retaining dams in karst areas, sinkholes, karst caves, and underground rivers must be effectively blocked. Otherwise, the reservoir will lose water If it is not guaranteed, it may even fall short. [0003] The grouting mold bag is a commonly used equipment in the sealing process, but in the case of dynamic water and a certain water pressure, in the prior art, it is often difficult to withstand pressure after grouting the mold bag, resulting in the cracking of the seam of the mold bag and the binding of the bottom of the mold bag. Problems such as slipping of threaded b...

AI Technical Summary

Problems solved by technology

[0003] The grouting mold bag is a commonly used equipment in the sealing process, but in the case of dynamic water and a certain water pressure, in the prior art, it is often difficult to withstand pressure after grouting the mold bag, resulting in the cracking of the seam of the mold bag and the binding of the bottom of the mold bag. Problems such as slipping of the threaded fasteners and holes in the binding between the mold bag and the grouting pipe seriously affect the sealing effect

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