Open pit coal mine rock dump-based waste rock soil formation method for land reclamation

A technology for open-pit coal mines and land reclamation, which is applied in the field of ecological environment prevention and control to achieve significant environmental effects and economic benefits.

Active Publication Date: 2020-07-28
XIAN CENT OF GEOLOGICAL SURVEY CGS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no method of organicizing the mixed soil of mine workers' kitchen waste, toilet excrement and carbonaceous shale

Method used

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  • Open pit coal mine rock dump-based waste rock soil formation method for land reclamation
  • Open pit coal mine rock dump-based waste rock soil formation method for land reclamation
  • Open pit coal mine rock dump-based waste rock soil formation method for land reclamation

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Embodiment Construction

[0058] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0059] Aiming at the problems existing in the prior art, the present invention provides a method for soil reclamation of waste rock based on land reclamation of open-pit coal mine rock drainage field. The present invention will be described in detail below in conjunction with the accompanying drawings.

[0060] Such as figure 1 As shown, the method provided by the present invention based on land reclamation of open-pit coal mine rock drainage field land reclamation waste rock soilization comprises:

[0061] S101: According to the purpose of land reclamation in the rock drainage field, use exploration data to evaluate and ...

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Abstract

The invention belongs to the technical field of ecological environment control and discloses an open pit coal mine rock dump-based waste rock soil formation method for land reclamation. The waste rocksoil formation method is a technique as follows: on the basis of evaluating and calculating lithologic differences and spatial distribution of different sedimentary rocks on a minable seam of an openpit coal mine, staggered excavation and classified stripping are carried out on different types of rocks (waste rocks) on the minable seam; the waste rocks are transported and stacked at different positions of a rock dump (waste dump) in a classified manner; layered compaction is carried out; and existing weathered coal, carbonaceous shales, shales, mudstones and the like of the open pit coal mine are stacked on a surface layer to replace soil for land reclamation, and are mixed and fermented with kitchen wastes and household wastes of mine workers for nutrification and organification, thereby completing waste rock soil formation. A treatment method for waste rock soil formation, waste rock reclamation and household waste harmless treatment of the workers for green mining is achieved; a novel soilless land reclamation mode for land reclamation of the open pit coal mine is innovatively formed; and the waste rock soil formation method has great environmental effect, economic effect andsocial effect.

Description

technical field [0001] The invention belongs to the technical field of ecological environment prevention and control, and in particular relates to a method for land reclamation of waste rock in an open-pit coal mine rock drainage field. Background technique [0002] At present, open-pit coal mining is to achieve the purpose of mining underground coal resources by stripping surface vegetation, soil and rocks. Generally speaking, the overburden thickness above the coal seam should be less than 100m. If the overburden is too thick, open-pit coal mining is uneconomical and needs to be changed to underground mining. Open-pit coal mining needs to strip the rocks (sandstone, mudstone, shale) above the mineable coal seam, and the stripped rocks are piled up as solid waste (waste rock) near the open-pit mine, that is, rock discharge field. Therefore, after open-pit mining, a deep pit with dozens of steps and a huge rock drainage field will be formed in the mining area. The former ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C05G3/00C05G3/80C05F17/00
CPCA01B79/02C05G3/00C05F3/00C05F17/00C05F9/00C05F11/02Y02W30/40
Inventor 徐友宁杨敏陈华清
Owner XIAN CENT OF GEOLOGICAL SURVEY CGS
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