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

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...

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

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