Method for reconstructing underground water storage space by coal mine solid filling and mining

Abstract

The invention discloses a method for reconstructing underground water storage space by coal mine solid filling and mining. The method for reconstructing the underground water storage space by coal mine solid filling and mining comprises the steps that work equipment selection, system arrangement and filling coal mining work are carried out according to a comprehensive mechanization solid filling coal mining technical method, and water retaining dam bodies are reserved on the two sides along goafs in the work surface stoping process; and through natural and pollution-free material filling goafsof gangue and aeolian sand, the overlying strata water diversion crack development degree and water inflow of the goafs are controlled to form the goaf filling water storage space, and the functionsof underground water resource storage and invoking are achieved. According to the method for reconstructing the underground water storage space by coal mine solid filling and mining, a large number ofsolid waste can be processes, the coal resource recovery rate is improved, and safety protection and recycling of underground water resources of water shortage mines are realized; and the method is simple and practical, economic and social benefits are obvious, and wide application prospects are achieved.

Description

technical field [0001] The invention relates to a method for recreating underground water storage space through solid filling and mining in coal mines, which is especially suitable for mining areas with weak ecological water resources in western China and belongs to the technical field of water conservation and mining in coal mines. Background technique [0002] In recent years, the focus of my country's coal resource development has been shifting to the west. High-intensity and large-scale coal mining activities have seriously damaged the underground water-containing (isolated) structure, resulting in a large amount of water loss and waste, which in turn has affected the fragile local ecological environment. , Affected by the special local climate conditions, the local mining area has a small amount of rainfall and is easily lost and evaporated. The water resources in the mining area are far from meeting the water demand for coal mining, and the water shortage problem in the ...

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Problems solved by technology

[0002] In recent years, the focus of my country's coal resource development has been shifting to the west. High-intensity and large-scale coal mining activities have seriously damaged the underground water-containing (isolated) structure, resulting in a large amount of water loss and waste, which in turn has affected the fragile local ecological environment. , affected by the special local climate conditions, the local mining area has a small amount of rainfall and is easily lost and evaporated. The water resources in the mining area are far from meeting the water demand for coal mining, and the water shortage problem in the mining area is serious.

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