An assembled arc-shaped artificial dam body of a coal mine underground reservoir and its construction method

Abstract

The invention discloses an assembled arc-shaped artificial dam body of a coal mine underground reservoir and a construction method thereof. An artificial dam body is arranged between adjacent coal pillar dam bodies, and the artificial dam body consists of a dam body base and two side wing plates The base of the dam body, the wing plates and the arc-shaped dam body are all assembled from several modules. The base of the dam body has grooves to insert the wing plates and arc-shaped dam body on both sides. The plate also has grooves to embed the arc-shaped dam body, and the base of the dam body and the wing plates are provided with anchor rods, which can form a stable whole between the artificial dam body and the surrounding rock mass. The convex surface of the arc-shaped dam body faces the underground reservoir, and part of the force is decomposed to the coal pillar dam body on both sides to reduce the direct force of the dam body, thereby reducing the thickness of the dam body. The present invention quantifies the size of the artificial dam body, builds standardized dam body modules on the ground, and quickly assembles them underground, which solves the problems of long construction period and high manufacturing cost of underground reservoirs in coal mines, and can prevent the dam body from being unstable, damaged, and water seepage .

Description

technical field [0001] The patent of the present invention relates to the technical field of underground reservoir construction, in particular to an assembled arc-shaped artificial dam body of a coal mine underground reservoir and a construction method thereof. Background technique [0002] "Rich coal and poor water" is the characteristic of natural resources in western my country. Large-scale and high-intensity coal mining will cause a large amount of mine water to drain out. On average, every ton of coal mined will produce about two tons of mine water. The great loss of groundwater resources, but also the pollution of the surrounding environment. In order to solve the contradiction between the protection of water resources and the utilization rate of coal resources, some mining areas put forward the concept of "conducting and storing" mine water, using the goaf formed by coal mining as the water storage space, and protecting the coal pillars and artificially built The dam ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of long construction period, high construction cost, and prone to instability and water seepage of the existing coal mine underground reservoir, the present invention provides an assembled arc-shaped artificial dam body of the coal mine underground reservoir and its construction method. The artificial dam body The construction of the dam is realized through rapid assembly, which improves the construction efficiency, reduces the construction cost, and prevents the dam from being unstable, damaged, and seepage

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