Open-pit mine internally-dumping formation reconfiguration method capable of increasing soil moisture content and achieving quick fertilization

Abstract

The invention discloses an open-pit mine internally-dumping formation reconfiguration method capable of increasing soil moisture content and achieving quick fertilization. In an internal dump, a soillayer, an aquifer, an aquifuge and a conventional dumping layer are arranged sequentially from the ground surface, a plurality of braiding channels and a plurality of water-diverting blind lanes are horizontally spread in the soil layer at intervals, the top surfaces of the braiding channels expose to the ground surface, the bottom surfaces of the braiding channels and the water-diverting blind lanes fit the bottom surface of the aquifer, and the braiding channels intersect with the water-diverting blind lanes so that every water-diverting blind lane is divided into multiple segments by the braiding channels; fertilizing and water-supplementing seepage pipes are laid in the braiding channels and are the same with the braiding channels in laying direction, and fertilizing and water-supplementing wells are longitudinally arranged at the start segments of the braiding channels and are communicated with the fertilizing and water-supplementing seepage pipes. The open-pit mine internally-dumping formation reconfiguration method capable of increasing the soil moisture content and achieving quick fertilization can decrease the evaporation amount of soil moisture, increase the rainfall infiltration amount and quickly fertilize and supplement water when the internal dump is low in ecological self-repairing capability at the initial stage of reclamation, so that the reclamation cost is saved and the survival rate of reclamation is increased.

Description

technical field [0001] The invention relates to a stratum reconstruction method, in particular to a stratum reconstruction method in an open-pit mine for rapid fertilization by increasing soil moisture content. Background technique [0002] Due to the impact of open-pit mining, the water level of the original aquifer around the mine pit has dropped, and the reconstructed strata cannot be replenished horizontally by the water source of the original stratum in time, and the moisture content and fertility of the reconstructed soil layer have decreased after transportation and stockpiling, resulting in soil discharge in the open-pit mine. At the initial stage of field reclamation, the soil moisture content is low, the ecological self-repair ability is weak, and the survival rate of vegetation is low, which increases the difficulty of reclamation. The traditional reclamation process requires manual watering to increase the soil moisture content. However, due to the large amount o...

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Problems solved by technology

[0002] Due to the impact of open-pit mining, the water level of the original aquifer around the mine pit has dropped, and the reconstructed strata cannot be replenished horizontally by the water source of the original strata in time, and the moisture content and fertility of the reconstructed soil layer have decreased after transportation and stockpiling, resulting in soil discharge in the open-pit mine. In the initial stage of field reclamation, the soil moisture content is low, the ecological self-repair ability is weak, and the survival rate of vegetation is low, which increases the difficulty of reclamation

The traditional reclamation process requires artificial watering to increase the soil moisture content, but due to the large amount of evaporation caused by the climate, the water replenishment effect is not significant, and the problem cannot be fundamentally solved. In addition, manual watering and fertilization requires a lot of manpower and material resources, which increases the cost of reclamation

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