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Underground reservoir for reconstruction of open pit mine foundation pit and construction method thereof

An underground reservoir and ore-based technology, applied in the field of concrete, to achieve the effect of optimizing the ecological environment

Pending Publication Date: 2021-06-25
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, this application provides an open-pit mine foundation pit reconstruction underground reservoir and its construction method, which solves the current ecological restoration problems of open-pit mine dumps

Method used

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  • Underground reservoir for reconstruction of open pit mine foundation pit and construction method thereof
  • Underground reservoir for reconstruction of open pit mine foundation pit and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An open-pit mine foundation pit reconstructed underground reservoir, the open-pit mine foundation pit reconstruction underground reservoir consists of a foundation pit floor 9, a water-resisting layer 1 around the open-pit mine foundation pit, a soil dump rockfill body in the open-pit mine foundation pit, The permeable layer 7, gravel cushion layer 6, sand cushion layer 5, and clay layer 4 laid on the top of the rockfill body in the dump site; the water-resistant layer 1 around the foundation pit of the open-pit mine and the foundation pit floor 9 form a surrounding rock seal The water storage space, the permeable layer 7 is formed by laying permeable concrete on the top of the rockfill body of the dump site, the gravel cushion 6 is laid on the permeable layer 7, and the sand cushion 5 is laid on the gravel cushion 6, A clay layer 4 is laid on the sand cushion layer 5, and the gravel cushion layer 6, the sand cushion layer 5, and the clay layer 4 form a surface permeable...

Embodiment 2

[0028] An open-pit mine foundation pit reconstructed underground reservoir, the open-pit mine foundation pit reconstruction underground reservoir consists of a foundation pit floor 9, a water-resisting layer 1 around the open-pit mine foundation pit, a soil dump rockfill body in the open-pit mine foundation pit, The permeable layer 7, gravel cushion layer 6, sand cushion layer 5, and clay layer 4 laid on the top of the rockfill body in the dump site; the water-resistant layer 1 around the foundation pit of the open-pit mine and the foundation pit floor 9 form a surrounding rock seal The water storage space, the permeable layer 7 is formed by laying permeable concrete on the top of the rockfill body of the dump site, the gravel cushion 6 is laid on the permeable layer 7, and the sand cushion 5 is laid on the gravel cushion 6, A clay layer 4 is laid on the sand cushion layer 5, and the gravel cushion layer 6, the sand cushion layer 5, and the clay layer 4 form a surface permeable...

Embodiment 3

[0030] An open-pit mine foundation pit reconstructed underground reservoir, the open-pit mine foundation pit reconstruction underground reservoir consists of a foundation pit floor 9, a water-resisting layer 1 around the open-pit mine foundation pit, a soil dump rockfill body in the open-pit mine foundation pit, The permeable layer 7, gravel cushion layer 6, sand cushion layer 5, and clay layer 4 laid on the top of the rockfill body in the dump site; the water-resistant layer 1 around the foundation pit of the open-pit mine and the foundation pit floor 9 form a surrounding rock seal The water storage space, the permeable layer 7 is formed by laying permeable concrete on the top of the rockfill body of the dump site, the gravel cushion 6 is laid on the permeable layer 7, and the sand cushion 5 is laid on the gravel cushion 6, A clay layer 4 is laid on the sand cushion layer 5, and the gravel cushion layer 6, the sand cushion layer 5, and the clay layer 4 form a surface permeable...

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Abstract

The invention discloses an underground reservoir for reconstruction of an open pit mine foundation pit and a construction method thereof. The underground reservoir is constructed by utilizing a gap space of piled gravels in an inner refuse dump in the open pit mine foundation pit for water storage and combining surrounding rock water insulation, surface water permeation and internal water delivery. The construction method comprises the steps that surrounding rock around the open pit mine foundation pit is subjected to grouting and water insulation to form a water storage space sealed by the surrounding rock; then water-permeable concrete is laid at the top of a refuse dump rockfill body to form a water-permeable layer, and a gravel cushion layer, a sand cushion layer and a clay layer are sequentially laid on the upper portion of the water-permeable layer to form a surface water-permeable system; and finally, water pumping pipes are arranged in refuse dump drill holes in the open pit mine foundation pit to form a water pumping pipe network, and the water pumping pipe network is connected to a ground surface pump station so that cyclic utilization of a water area in the underground reservoir can be achieved. According to the underground reservoir for reconstruction of the open pit mine foundation pit and the construction method thereof, a large coal-electric base ecological water storage and storage integrated process system with ground surface water permeation, scattered rock water storage, soil-rock isolation and surrounding rock sealing is constructed, and the problems of ecological restoration and environmental pollution of an open pit mine are solved.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to an open-pit mine foundation pit reconstructed underground reservoir and a construction method thereof. Background technique [0002] my country is a big mining country in the world, and the development of mineral resources has promoted the development of my country's social economy. Due to the long-term disorderly mining of mineral resources, a series of disadvantages brought about by open-pit mining have gradually emerged. After mining, a series of problems such as deformation and failure of the rock mass of the mountain slope, disturbance of topography and landform, and destruction of the original groundwater system have exacerbated the further deterioration of the ecological environment of the mine. Therefore, how to carry out ecological restoration of open-pit mines has become a hot issue in improving the environmental conditions of mining areas at the current stage. [00...

Claims

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Application Information

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IPC IPC(8): E02D29/045E02D17/02E02D31/00
CPCE02D29/045E02D17/02E02D31/00
Inventor 张忠哲姬永生高铭吴猛振肖洁吴婷婷薛琦宋雷徐之山张洁马明明
Owner CHINA UNIV OF MINING & TECH
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