Small piping cramming device

Abstract

The invention discloses a small piping cramming device. The small piping cramming device comprises a steel hollow ball (1), a high-strength fiber cable (2) and a plug body (3). According to the small piping cramming device, the structure is simple, and utilization is convenient; the steel hollow ball is sucked into piping through suction generated by the piping, suction is conducted to the plug body through the high-strength fiber cable, and the plug body is pulled to accurately enter the piping; the plug body is provided with an alloy strut, a hard rubber plug body and a soft rubber outer layer with an air sac, the alloy strut can bear tensile force of flotation leading, and the plug body is guaranteed to have relatively good strength; design of threads and a check block is adopted, so that the device is firmer; the hard rubber plug body is a main body for cramming the piping, so that cramming can be guaranteed firm; the soft rubber outer layer with the air sac can better fill clearances between the hard rubber plug body and the irregular piping wall and is not liable to wash away; and a flared flange can block small gaps around the piping, and the piping cramming effect is improved.

Description

technical field [0001] The invention relates to a flood prevention device, in particular to a small pipe filling and plugging device. Background technique [0002] Piping refers to the general term for two different dangers of soil flow and subsurface erosion that occur near or farther down the slope toe of the dam site in the case of high water levels. The flow of soil is the fastest among them. It will lead to the collapse of the embankment project, causing the dike to break and the dam to break. The outlet aperture of the piping is as small as an ant nest, and the large one can reach tens of centimeters. The cause of piping is generally that there is a permeable layer under the covering layer above the dam foundation. When the water level is high, the seepage will hollow out the sand layer or foundation soil under the dam foundation, forming piping. Covering and other measures, the best way is to block the seepage channel to avoid further expansion of the seepage channel...

AI Technical Summary

Problems solved by technology

Piping is generally caused by the strong permeable layer below the covering layer above the dam foundation. When the water level is high, seepage will hollow out the sand layer or foundation soil under the dam foundation, forming piping. Covering and other measures, the best way is to block the seepage channel to avoid further expansion of the seepage channel. The traditional plugging measure is to fill the concrete, but the concrete cannot set quickly and will be washed away under the action of water pressure, resulting in the passage of water. The blocking effect becomes worse, the efficiency becomes lower, and the best time for blocking is delayed, and the small gaps around the piping are not easy to block

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