Water retention method of open coal mining frozen water-bearing stratum
A technology for open-pit coal mines and underground aquifers, which is applied in soil protection, surface mining, and earth-moving drilling to achieve the effects of reducing energy consumption, reliable use methods, and protecting the ecological environment.
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[0020] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0021] Such as figure 1 Shown, the water retention method of the frozen aquifer of the open-pit coal mining of the present invention may further comprise the steps:
[0022] a. Construct multiple hydrological detection boreholes downward within the coal mining area of the open-pit coal mine, and judge the regional boundary of the underground aquifer distribution within the open-pit coal mine field, the buried depth of the aquifer and other parameter information according to the water inflow in the borehole;
[0023] b. Establish multiple freezing stations at the corresponding mine field boundary around the open-pit mining area to surround the open-pit mining area: the multiple freezing stations surrounding the open-pit mining area take the center of the open-pit as the origin and connect the open-pit to the mine field The distance of the boundary is a ci...
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