Strip mine waste dump with water draining and storing functions

Abstract

The invention discloses a strip mine waste dump with water draining and storing functions. A surface water-resisting layer is constructed in the strip mine waste dump above the original stratum water outlet point gathering level, and a surface water-draining layer is laid on the surface of the surface water-resisting layer; a step-shaped internal drainage water-resisting layer is constructed below the original stratum water outlet point gathering level, and an internal drainage water-draining layer is laid on the upper surface of the internal drainage water-resisting layer; a lower water-resisting layer is constructed below the original stratum water outlet point gathering level, and a lower water-draining layer is laid on the upper surface of the lower water-resisting layer; a bottom water-resisting layer is constructed below the lower water-resisting layer, and a bottom water-draining layer is laid on the upper surface of the bottom water-resisting layer; and the outer edge of the strip mine waste dump is of a step-shaped structure, and a slope bottom drainage channel is arranged at the slope bottom position of each waste dump step. According to different sources of water, the multiple water-resisting layers and the water-draining layers are arranged for segmented blocking and dredging, gathering of weak layers in the strip mine waste dump is avoided, the water remaining amount in the strip mine waste dump is effectively reduced, and safety of the strip mine waste dump is guaranteed.

Description

technical field [0001] The invention relates to an open-pit mine dump, in particular to an open-pit mine dump with the function of hydrophobic water storage. Background technique [0002] ‌During the construction of the open-pit mine dump, the water outlet point of the buried aquifer will continue to infiltrate a large amount of water into the dump. At the same time, due to atmospheric precipitation, a large amount of water accumulated on the surface of the dump will continue to infiltrate into the dump if it cannot be drained in time. Under the combined effects of the above situations, a large amount of water will accumulate inside the dump, seriously eroding the material strength inside the dump, and when the internal water pressure is high or the erosion layer is serious, a weak layer will be formed inside the dump, reducing the discharge rate. The stability of the soil field has a serious impact on the safe production of mines. Contents of the invention [0003] Aimi...

AI Technical Summary

Problems solved by technology

Under the combined effects of the above situations, a large amount of water will accumulate inside the dump, seriously eroding the material strength inside the dump, and when the internal water pressure is high or the erosion layer is serious, a weak layer will be formed inside the dump, reducing the discharge rate. The stability of the soil field has a serious impact on the safety of mine production

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