Wall-type continuous mining and charging protection water mining and water resource migration monitoring and water damage early warning method

Abstract

The invention discloses a wall-type continuous mining and charging protection water mining and water resource migration monitoring and water damage early warning method. According to the method, a normal wall-type working face is divided into a 'mining-charging' exploitation block and a 'mining-reserving' exploitation block which are alternately arranged along a trend direction, coal pillars are not reserved among exploitation roadways in the 'mining-charging' exploitation block, roadways finishing tunneling are filled, narrow coal pillars are reserved among exploitation roadways in the 'mining-reserving' exploitation block, and roadways finishing tunneling are not filled. An infrared thermal imaging system is used for observing surface infrared radiation information of a mining space, anddynamic disasters such as filling body or narrow coal pillar instability are predicted. By the aid of a water resource migration monitoring and water damage early warning system, mining area water resource loss caused by coal mining and water damage easily occurring in a stope are comprehensively monitored, early warned and reasonably evaluated. The method widens applicable conditions of a protection water mining method, is a potential protection water mining method and has a wide application prospect.

Description

technical field [0001] The invention relates to a coal mining method, in particular to a method for wall-type continuous mining, continuous filling and water conservation coal mining, monitoring of water resource migration, and early warning of water damage, belonging to the technical field of coal mining. Background technique [0002] The shallow buried coal seam in Northwest my country is rich in deposits and is an important energy base in my country. However, it is located in an arid and semi-arid continental climate zone, with relatively poor water resources and a fragile ecosystem. Coupled with large-scale coal mining activities, the ecological crisis has further aggravated. The problem of coordinating coal mining and ecological environment protection has always been one of the important issues to be solved urgently in coal mining in Northwest my country. Therefore, in the process of coal mining, adopting certain technical means to protect the structure of the aquifer i...

AI Technical Summary

Problems solved by technology

However, the factors that restrict the large-scale promotion of traditional filling mining technology mainly include the difficulty of coordinating coal mining and filling operations, the increase in cost caused by low filling efficiency and filling body utilization, and the single coal mining method is weak in adaptability to complex and changeable site environments Wait

In order to improve the limitations of filling and mining at the present stage, some scholars have proposed a "parallel mining and filling" water-retaining coal mining method in recent years. This method better solves the problem of difficult coordination between coal mining and filling. It not only reduces the waste of filling materials, but also increases the cost of filling, and reduces the coal mining efficiency to a certain extent, making it difficult to popularize and apply this method in a large area.

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