Wall-type continuous mining, continuous filling and water conservation coal mining, water resource migration monitoring, and water hazard early warning methods

Abstract

The invention discloses a method for wall-type continuous mining, continuous filling, water-preserving coal mining, monitoring of water resource migration, and early warning of water damage. The method divides a normal wall-type working face into "mining-filling" and "mining-retention" along the direction of direction. Alternately arranged mining blocks, no coal pillars are left between the roadways mined in the "mining-filling" mining block, and the roadways that have been excavated are filled; Narrow coal pillars are set, and the roadway after excavation is not filled; and the infrared thermal imaging system is used to observe the surface infrared radiation information of the excavation space, and the dynamic disasters such as filling body or narrow coal pillar instability are predicted and predicted; through the monitoring of water resources migration With the water disaster early warning system, comprehensive monitoring, early warning and reasonable evaluation of the loss of water resources in the mining area caused by coal mining and the water disasters that are prone to occur in the stope. The method broadens the applicable conditions of the water-retaining coal mining method, is a potential water-retaining coal mining method, and has broad application prospects.

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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