Comprehensive water managing method in underground mining stage of open pit into underground mining

Abstract

The invention discloses a comprehensive water managing method in an underground mining stage of open pit into underground mining. The method comprises the steps of building a flood intercepting trench (13) outside an underground mining moving band range line (10), mounting a lower shaft pump station (3) inside an underground mining horizontal transportation lane (7) at the bottom of the underground mining lift shaft (1), at least adding an upper shaft pump station (2) inside the underground mining horizontal transportation lane (7) at the upper portion of the underground mining lift shaft (1), establishing a drainage opening (5) at the bottom of an open pit slope, and building an overflow well (4) in the underground mining horizontal transportation lane (7) arranged with the lower shaft pump station (3). According to the comprehensive water managing method in the underground mining stage of open pit into underground mining, multi-pronged comprehensive measures of severing, prevention, drainage, dredging and storage are adopted, water disasters in the underground mining stage of the open pit into underground mining can be effectively solved, and the method can be applied widely to water managing in the underground mining stage of the open pit into underground mining in industries of ferrous, non-ferrous, coal, chemical engineering and the like.

Description

technical field [0001] The invention relates to a comprehensive water control method for mine mining, in particular to a comprehensive treatment measure for surface water and groundwater in the underground mining stage in the transition from open-pit to underground mining, which can be used in the conversion of open-pit to underground mining in black, non-ferrous, coal, chemical and other industries. widely used. Background technique [0002] During the underground mining stage of the open pit to underground mining mine, the upper part is the remaining deep concave open pit. The catchment area of ​​the open pit is very large, often reaching hundreds of thousands of square meters. Atmospheric precipitation directly affects underground drainage. During heavy rains, the flood peak is rapid, the short-duration flood peak is extremely large, and the open pit has a large amount of water, which poses a serious threat to underground mining. For example, in 1984, the Lizhu Iron Min...

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Problems solved by technology

[0004] The above-mentioned existing water control measures are partial and unsystematic, and it is difficult to meet the needs of comprehensive water control during the rainstorm season in the underground mining stage of the open-pit to underground mining mine, and cannot effectively prevent the occurrence of water disasters such as mine flooding

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