Combined mixed-discharge technology for mining barren rock soil and solidified tailings

A technology for mining waste rock and tailings, applied in excavation, construction, infrastructure engineering, etc., can solve problems such as endangering the safety of personnel and equipment, affecting the normal production of open pits and dumps, etc., to save infrastructure costs, directly The effect of significant economic benefits and huge social benefits

Active Publication Date: 2012-05-09
SINOSTEEL MAANSHAN INST OF MINING RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the dump site loses stability, it will seriously affect the normal production of the open pit and the dump site, endangering the safety of personnel and equipment

Method used

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  • Combined mixed-discharge technology for mining barren rock soil and solidified tailings
  • Combined mixed-discharge technology for mining barren rock soil and solidified tailings
  • Combined mixed-discharge technology for mining barren rock soil and solidified tailings

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Embodiment Construction

[0028] In order to further describe the present invention, a joint mixing technology of mining waste rock soil and solidified tailings of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples.

[0029] figure 1 Shown in the present invention is a longitudinal projection of a mining waste rock soil and solidified tailings in a combined mixed-discharge dump in a dump site and combined figure 2 It can be seen from the detailed picture of solidified tailings stacking that the solidified tailings 7 are designed as a trapezoidal structure with a narrow bottom and a wide upper part, and are arranged in each platform body of the dump according to a certain distance; 1 is provided with intercepting ditches 6 at the bottom; a drainage blind ditch 3 is set at the bottom of the solidified tailings 7, and seepage drainage flower pipes 4 are buried in the drainage blind ditch 3, and the outlets of the seepage drainage flo...

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Abstract

The invention discloses a combined mixed-discharge technology for mining barren rock soil and solidified tailings, which is capable of systematically researching burying characteristics, hydrogeologic conditions, mining process and discharged refuse materials of natural geology and foundation rock layers of the areas with a refuse dump and physico-mechanical properties of the foundation, analyzing and calculating relative parameters of the refuse dump, then analyzing bearing capacity of the refuse dump and respectively calculating settlement capacity and heaving floor of the foundation of the refuse dump according to limiting equilibrium principle, designing the solidified tailings (7) into a trapezoidal structural body with upper wide and bottom narrow and distributing the solidified tailings in various platforms of the refuse dump at certain intervals to form a mining barren rock soil and solidified tailing combined mixed-discharge refuse dump. The mining barren rock soil and solidified tailing combined mixed-discharge refuse dump is subjected to elastoplasticity finite-element analysis, ground water transfusion field analysis and stability and reliability analysis, and finally soil discharge technology and soil discharge parameters of the mining barren rock soil and solidified tailing combined mixed-discharge refuse dump are optimized. By the aid of the combined mixed-discharge technology for the mining barren rock soil and solidified tailings, safety potential hazards existing in tailing warehouses are eliminated, the problem of difficulty in land acquisition for construction of the tailing warehouses is solved, normal production of mines can be guaranteed, and foundation construction cost of the tailing warehouse and long-distance transporting cost of the tailings and operation cost are all saved.

Description

technical field [0001] The present invention relates to the stacking technology of solid waste in mines, in particular to the technology of mixing mining waste rock soil and tailings, that is, when the mining waste rock soil is discharged in the dump site, the solidified tailings are buried therein , At the same time, technology that can ensure the safety of the dump site. It is suitable for all kinds of mines to pile up waste rock, topsoil, mixed rock and soil, and tailings. Background technique [0002] Mine solid waste dumps generally include dumps and tailings ponds. Dump site, also known as waste rock site, refers to the place where mining and mining discharge materials are discharged intensively, generally including humus topsoil, weathered rock and soil, hard rock and mixed rock and soil, and sometimes including off-surface ore that may be recycled, lean ore, etc. . The tailings stockpile is the fine-grained solid waste generated during the mineral processing proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D19/20
Inventor 段蔚平汪斌曾学敏窦晓峰华跃吴小刚周玉新汪良峰邱宇
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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