Mine underground water regulation and storage method and system

A groundwater and mine water gushing technology, applied in drainage, mining equipment, earthwork drilling and mining, etc., can solve problems such as high construction cost, reduced convenience of reinjection process, troublesome site selection and maintenance, etc., and achieve good economic benefits

Pending Publication Date: 2021-06-15
中煤水文局集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems in the above-mentioned background technology, the present invention provides a method for regulating and storing underground water in mines, which can solve the problem that the current reinjection proces...

Method used

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  • Mine underground water regulation and storage method and system
  • Mine underground water regulation and storage method and system
  • Mine underground water regulation and storage method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] This embodiment provides a method for regulating and storing underground water in mines, comprising the following steps:

[0065] S1. Conduct hydrogeological survey of the proposed mine, including: mine water filling conditions; confined aquifer water level and water quality; coal seam and mine water distribution;

[0066] S2. Determine the directly water-filled aquifer of the mine water gushing, select the directly water-filled aquifer on the roof of the coal seam as the pumping layer, pump the groundwater in the pumping layer out of the ground, and then inject the groundwater pumped out of the ground into the confined aquifer layer, that's it.

[0067] This embodiment can solve the technical problems that the current reinjection process needs to build a reservoir underground and a sewage treatment station on the ground, the construction cost is high, site selection and maintenance are troublesome, and the convenience of the reinjection process is reduced.

[0068] Th...

Embodiment 2

[0073] This embodiment provides a method for regulating and storing underground water in mines, comprising the following steps:

[0074] S1. Conduct hydrogeological survey of the proposed mine, including: mine water filling conditions; confined aquifer water level and water quality; coal seam and mine water distribution;

[0075] S2. Determine the directly water-filled aquifer of the mine water gushing, select the directly water-filled aquifer on the roof of the coal seam as the pumping layer, pump the groundwater in the pumping layer out of the ground, and then inject the groundwater pumped out of the ground into the confined aquifer layer, you can;

[0076] S3. Prepare coal gangue slurry, which is composed of 1 part by mass of coal gangue powder and 0.5 part by mass of water; determine the disturbance of the mining crack formed by the pumping layer described in step S2 after pumping space, and then grouting the coal gangue slurry into the disturbance space of the mining fra...

Embodiment 3

[0081] This embodiment provides a method for regulating and storing underground water in mines, comprising the following steps:

[0082] S1. Conduct hydrogeological survey of the proposed mine, including: mine water filling conditions; confined aquifer water level and water quality; coal seam and mine water distribution;

[0083] S2. Determine the directly water-filled aquifer of the mine water gushing, select the directly water-filled aquifer on the roof of the coal seam as the pumping layer, pump the groundwater in the pumping layer out of the ground, and then inject the groundwater pumped out of the ground into the confined aquifer layer, you can;

[0084] S3. Prepare coal gangue slurry, which is composed of 4 parts by mass of coal gangue powder and 1 part by mass of water; determine the disturbance of the mining crack formed by the pumping layer described in step S2 after pumping space, and then grouting the coal gangue slurry into the disturbance space of the mining frac...

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Abstract

The invention relates to a mine underground water regulation and storage method and system, and belongs to the technical field of ecological environmental protection. The mine underground water regulation and storage method comprises the following steps that S1, hydrogeological exploration is carried out; and S2, a direct water filling aquifer of mine gushing water is determined, the direct water filling aquifer on a coal seam roof is selected as a water pumping layer, underground water of the water pumping layer is pumped out of the ground, and then the underground water pumped out of the ground is injected into a confined aquifer. The mine underground water regulation and storage system comprises a liquid pump, a liquid pumping well and a liquid injection well which are located on the ground, one end of the liquid pumping well extends into a liquid pumping layer, and the other end of the liquid pumping well is connected with a liquid inlet A of the liquid pump; and one end of the liquid injection well is connected with a liquid outlet A of the liquid pumping pump, and the other end of the liquid injection well extends into the confined aquifer. The direct water filling aquifer is underground water which is not polluted by the pit, a purification device does not need to be built, water treatment does not need to be carried out, cost is saved, and safety is high.

Description

technical field [0001] The invention belongs to the technical field of ecology and environmental protection, and in particular relates to a mine groundwater regulation and storage method and a regulation and storage system. Background technique [0002] Mine groundwater refers to the accumulated water located in the confined aquifer of the mine. In the process of mining mineral resources, a large amount of mine groundwater is discharged to the external environment every year. On the one hand, it is easy to cause surface water and shallow groundwater pollution; on the other hand, it is easy to cause secondary geological disasters such as karst collapse and seawater intrusion; and Injecting water into the confined aquifer of the mine through the reinjection process can effectively regulate the overall system of underground water in the mine, prevent the above-mentioned pollution and secondary geological disasters, and have great significance for the protection of the ecologica...

Claims

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Application Information

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IPC IPC(8): E21F16/00E21F15/08E21F17/00
CPCE21F16/00E21F15/08E21F17/00
Inventor 王锋利任虎俊翟丽娟许超
Owner 中煤水文局集团有限公司
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