A diversion airbag dam protection structure for underground water reservoir in coal mine

Abstract

The invention specifically discloses a diversion airbag dam protection structure for an underground reservoir in a coal mine, comprising an I-shaped connection port, a dam protection airbag, a diversion column, an artificial dam body, and an isolation coal pillar; the artificial dam body is designed as an I-shaped structure, which is interconnected with the surrounding isolation coal pillars and ensures that the inner dam body of the reservoir is flat; the diversion column is built in front of the dam, and is in a water drop shape as a whole, and can be divided into a front wave-making column and a rear wake column; the front wave-making column is spherically designed to reduce the wave-making resistance of the water body and divert the water body; the rear wake column guides the diverted water body to divide different water body pressure distribution structures; the dam protection airbag is fixed between the diversion column and the dam body, each diversion column corresponds to a wave-blocking bag, the gap between the diversion columns corresponds to a force-unloading bag, the gas filled in the dam protection airbag should be 60% to 80% of the total filling volume, the high-pressure water behind the wake column impacts the wave-blocking bag, the gas escapes to the force-unloading bag, after the water body turbulence, the force-unloading bag is pressurized, and the gas flows back to the wave-blocking bag.

Description

Technical Field

[0001] The invention relates to the field of abandoned mine underground reservoirs, and in particular to a diversion airbag dam protection structure for coal mine underground reservoirs. Background Art

[0002] Large-scale and high-intensity mining of coal mines will bring different degrees of disturbance and impact to the natural environment, ecological environment and resource endowment geological structure environment of the mining area. When the carrying capacity of the regional environment is exceeded, the balanced environmental conditions of the region will be destroyed. Among them, coal mining causes the destruction of the structure and integrity of the roof overburden, resulting in the transformation of the new water circulation mode of the aquifer from interlayer runoff to vertical runoff, so that most of the weak aquifers of the roof sandstone and the Quaternary phreatic aquifers seep (break) into the mine goaf. Therefore, in the ecologically fragile mining areas in the west, it is an important task for the sustainable development of coal resources to reasonably construct underground reservoirs to protect and utilize groundwater resources. In order to protect the precious water resources in the mining area, the goaf formed after coal seam mining can be built into coal mine underground reservoirs.

[0003] However, the water pressure of the reservoir has brought challenges to the water storage capacity of the coal mine underground reservoir and the safety of the reservoir dam. To this end, the present invention proposes a diversion airbag dam protection structure for the coal mine underground reservoir, which uses diversion columns to divert water and uses airbags to balance the water pressure at various locations, effectively achieving the purpose of unloading and protecting the dam. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a diversion airbag dam protection structure for an underground water reservoir in a coal mine.

[0005] The present invention discloses a coal mine underground reservoir diversion airbag dam protection structure, which specifically comprises an I-shaped connection port, a dam protection airbag, a diversion column, an artificial dam body, and an isolation coal pillar, and is characterized in that:

[0006] The artificial dam body is designed as an I-shaped structure, which is interconnected with the surrounding isolation coal pillars and ensures that the inner dam body of the reservoir is flat;

[0007] The diverter column is built in front of the dam. The diverter column is in the shape of a water droplet as a whole and can be divided into a front wave-making column and a rear wake column. The front wave-making column is spherical in design and is used to reduce the wave-making resistance of the water body and divert the water body. The rear wake column guides the diverted water body and divides different water pressure distribution structures.

[0008] The dam protection airbag is fixed between the diverter column and the dam body. There is a wave-blocking bag behind each diverter column, and the gap between the diverter columns corresponds to the unloading bag. The gas filled in the dam protection airbag should be 60% to 80% of the total filling volume. The high-pressure water behind the wake column impacts the wave-blocking bag, and the gas escapes to the unloading bag. After the water body is turbulent, the unloading bag is pressurized and the gas flows back to the wave-blocking bag.

[0009] Specifically, anchor cables are driven into the diversion columns, artificial dam bodies and isolation coal pillars for stabilization.

[0010] Specifically, the dam protection airbags can be connected in sections or in different heights.

[0011] Specifically, the corresponding filling gas can be selected in the dam protection airbag according to the construction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a schematic structural diagram of a coal mine underground reservoir diversion air bag dam protection structure.

[0013] Figure 2 yes Figure 1 Schematic top view of .

[0014] In the figure: 1 is an I-shaped connection; 2 is a dam protection airbag; 3 is a diversion column; 4 is an artificial dam body; 5 is an isolation coal pillar; 2.1 is a wave-blocking bag; 2.2 is a force-unloading bag; 3.1 is a wave-making column; 3.2 is a wake column. DETAILED DESCRIPTION

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] The artificial dam body 4 is designed as an I-shaped structure, connected to the surrounding isolation coal pillars 5, and ensures that the inner dam body of the reservoir is flat;

[0017] The diverter column 3 is built in front of the dam. The diverter column 3 is in the shape of a water droplet as a whole and can be divided into a front wave-making column 3.1 and a rear wake column 3.2. The front wave-making column 3.1 is spherical in design and is used to reduce the wave-making resistance of the water body and divert the water body. The rear wake column 3.2 guides the diverted water body and divides different water pressure distribution structures.

[0018] The dam protection airbag 2 is fixed between the diverter column 3 and the dam body. There is a wave-blocking bag 2.1 behind each diverter column 3, and the gap between the diverter columns 3 corresponds to the unloading bag 2.2. The gas filled in the dam protection airbag 2 should be 60% to 80% of the total filling volume. The high-pressure water behind the wake column 3 impacts the wave-blocking bag 2.1, and the gas escapes to the unloading bag 2.2. After the water body is turbulent, the unloading bag 2.2 is pressurized and the gas flows back to the wave-blocking bag 2.1.

[0019] Specifically, anchor cables are driven into the diversion column 3, the artificial dam body 4 and the isolation coal pillar 5 for stabilization.

[0020] Specifically, the dam protection airbags 2 can be connected in sections or in different heights.

[0021] Specifically, the dam protection airbag 2 can be filled with corresponding gas according to the construction environment.

[0022] Of course, the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment. It should be noted that all equivalent substitutions and obvious deformation forms made by any technician familiar with the field under the guidance of this specification fall within the essential scope of this specification and should be protected by the present invention.

Claims

1. A coal mine underground reservoir diversion airbag dam protection structure, specifically comprising an I-shaped connector, a dam protection airbag, a diversion column, an artificial dam body, and an isolation coal pillar. Features: The artificial dam body is designed as an I-shaped structure, which is interconnected with the surrounding isolation coal pillars and ensures that the inner dam body of the reservoir is flat; The diverter column is built in front of the dam. The diverter column is in the shape of a water droplet as a whole and is divided into a front wave-making column and a rear wake column. The front wave-making column is spherical in design and is used to reduce the wave-making resistance of the water body and divert the water body. The rear wake column guides the diverted water body and divides different water pressure distribution structures. The dam protection airbag is fixed between the diverter column and the dam body. There is a wave-blocking bag behind each diverter column, and the gap between the diverter columns corresponds to the unloading bag. The gas filled in the dam protection airbag should be 60% to 80% of the total filling volume. The high-pressure water behind the wake column impacts the wave-blocking bag, and the gas escapes to the unloading bag. After the water body is turbulent, the unloading bag is pressurized and the gas flows back to the wave-blocking bag.

2. According to claim 1, a coal mine underground reservoir diversion airbag dam protection structure, It is characterized in that Anchor cables are driven into the diversion column, artificial dam body and isolation coal pillar for stabilization.

3. According to claim 1, a coal mine underground reservoir diversion airbag dam protection structure, It is characterized in that The dam protection airbags are connected in sections and at different heights.

4. According to claim 1, a coal mine underground reservoir diversion airbag dam protection structure, It is characterized in that The dam protection airbag is filled with corresponding gas according to the construction environment.

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