Underground cut-off wall with adjustable combined well gate

Abstract

The invention discloses an underground cut-off wall with an adjustable combined well gate. The underground cut-off wall comprises a cut-off wall main body, and the combined well gate is arranged on the cut-off wall main body; the combined well gate comprises an outer shell, an air bag arranged in the outer shell, an inner support arranged in the air bag and an inflation and exhaust pipe communicating with the air bag, and an overflowing hole is formed in the outer shell; and the inflation and exhaust pipe is arranged in the outer shell, and the air bag is arranged on the outer side of the middle of the inflation and exhaust pipe and connected with the outside of the inflation and exhaust pipe in a sealed mode. The air bag controls opening and closing of a water passing hole, control is convenient and reliable, stability is high, the service life is long, all the water passing hole can be pulled out of the outer shell, and replacement, overhaul and operation management are convenient. All permeable stratums can pass through flow holes, the water passing efficiency is high, the drainage amount is large, construction can be conducted together with grooving of the concrete cut-off wall, construction is convenient, and the wall is worthy of being vigorously popularized.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to an underground seepage cut-off wall with an adjustable combined well gate. Background technique [0002] The underground cut-off wall is an underground structure often used in water storage projects. It usually refers to making an anti-seepage layer in a certain section of the earth dam and the foundation below it to cut off the runoff channel of groundwater, and it is composed of the upper water-retaining structure. A water conservancy project that intercepts a water body across its entire section. Most of the reservoirs and hydropower projects are built with underground cut-off walls, and most of the underground reservoir projects are built in the form of cut-off walls, and some river channel stormwater resources storage projects are also built in the form of cut-off walls. Commonly used cut-off wall materials include concrete, asphalt concrete, continuou...

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the full-section vertical underground seepage interception wall does not have an adjustable function, if an adjustable gate can be designed, it can well control the upstream water surface of the underground seepage interception wall, and can realize the function of storing and releasing water at any time, which is convenient for the adjustment of groundwater resources. Allocation and effective use to meet the downstream ecological water demand during the dry season

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