Method for forming artificial water storage stratum through solid filling coal-mining technology

A solid filling and man-made technology, which is applied in the direction of filling, mining equipment, mining equipment, etc., can solve the problem that the protective coal pillar cannot be recycled, and achieve the effect of solving storage and protection utilization problems, simple technical methods, and convenient promotion and application

Inactive Publication Date: 2019-01-04
缪协兴
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Problems solved by technology

On the other hand, general mining areas will contain a large number of protective coal pillars that cannot be recycled, and will also discharge a large amount of solid waste such as gangue

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  • Method for forming artificial water storage stratum through solid filling coal-mining technology
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  • Method for forming artificial water storage stratum through solid filling coal-mining technology

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] figure 1 A structural schematic diagram of a preferred embodiment of the present invention is shown. Taking the CT3210 working face of a certain mine as an example, a method for man-made water storage formations of solid filling coal mining technology of the present invention is described in detail:

[0019] a. In the mine boundary pr...

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Abstract

The invention provides a method for forming an artificial water storage stratum through a solid filling coal-mining technology. The method comprises the following steps that goaf filling of alternating non-dense filling zones and dense filling zones is conducted on coal pillars and surrounding coal seams in a mine area, and the artificial water storage stratum is formed in a goaf of the non-densefilling zones; and surface rainfall is introduced into the artificial water storage stratum through two paths of a mining-induced fracture seepage channel and an artificial water-injection channel. According to the method, unexploited coal of the coal pillars can be recovered safely and efficiently, solid waste in the mining area can be fully utilized and treated, the water storage stratum is constructed, namely an underground reservoir is formed, and the problems of storage and protection utilization of water resources in a water-shortage mining area are solved; and the method is simple, safe, reliable, and convenient to apply and popularize, and has the good economic, social and environmental benefits.

Description

technical field [0001] The invention relates to a method for man-made water-storage formations in solid-fill coal mining technology, and is especially suitable for water-retaining mining of coal seams or protective coal pillars in water-deficient mining areas. Background technique [0002] Among the 14 large-scale coal bases in my country, except for Yunnan-Guizhou, Lianghuai and Eastern Mongolia bases, 11 coal bases are seriously short of water, especially in the northwest region, which accounts for 75% of the country's coal resources, but only about 20% of the country's water resources. Most of the precipitation is lost quickly along the surface runoff, and the evaporation loss of surface water is serious. Most modern mining areas adopt longwall caving mining, and the goaf is quickly compacted by the collapsed overlying rock, while most of the water-deficient mining areas do not have effective aquifers in the coal seam overlying rocks, so water storage space cannot be forme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/16E21F15/00
CPCE21F17/16E21F15/00
Inventor 缪协兴
Owner 缪协兴
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