Downward layering horizontal drift high-sublevel filling mining method

Abstract

The invention discloses a downward layering horizontal drift high-sublevel filling mining method. The downward layering horizontal drift high-sublevel filling mining method particularly comprises thesteps of division of ore blocks, stope preparation cutting, stoping, stope ventilation and stope filling and so on, and a whole sublevel mine can be mined. The sublevel height is increased, the stoping layer number is increased, the sublevel stoping mine amount is increased, the panel service life can be prolonged, panel mining disorder can be solved, after middle level stope preparation engineering arranging optimization, six sublevels are arranged in the 150 m middle level, the sublevel construction is reduced, the middle level stope preparation engineering amount is reduced by about 3500m / 72000m<3>, the mine engineering construction investment is greatly saved, after the sublevel height is increased, the sublevel service life is prolonged, the sublevel digging disorder contradiction isrelieved, and the sublevel engineering construction pressure is reduced.

Description

technical field [0001] The invention belongs to the technical field of mining in non-ferrous mines, and in particular relates to a high-section filling mining method with downward stratification and horizontal approach. Background technique [0002] The downward layered horizontal approach cemented filling mining method is a mature mining method. The ore body mined is thick, unstable and broken. It has high recovery rate, low dilution rate and good safety. With the characteristics of high degree of mechanization and large production capacity, it is widely used in non-ferrous underground mines in my country. [0003] But existing this mining method concretely has following shortcoming: [0004] (1) Small amount of ore in each section, short service life of the panel, and short turnaround period of the panel; [0005] (2) The panel turns quickly, resulting in abnormal production organization of the panel and affecting the production capacity of the panel; [0006] (3) The ex...

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Problems solved by technology

[0005] (2) The panel turns quickly, resulting in abnormal production organization of the panel and affecting the production capacity of the panel;

[0006] (3) The excavation pressure of the excavation project is high, which may easily cause excavation imbalance;

[0007] (4) The chute is relatively far away from the ore body, and the ore output distance is long, resulting in low production efficiency;

[0008] (5) The amount of quasi-projects is large and the investment is large

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