Downward layering horizontal drift high-sublevel filling mining method

A filling mining method and approach technology, which is applied in underground mining, filling, surface mining, etc., can solve the problems of mining imbalance, low production efficiency, and the distance between the shaft and the ore body, so as to alleviate the contradiction of mining imbalance and reduce construction costs. The effect of engineering quantity and saving construction investment

A filling mining method and approach technology, which is applied in underground mining, filling, surface mining, etc., can solve the problems of mining imbalance, low production efficiency, and the distance between the shaft and the ore body, so as to alleviate the contradiction of mining imbalance and reduce construction costs. The effect of engineering quantity and saving construction investment

CN110905516AActive Publication Date: 2020-03-24JINCHUAN GROUP LIMITED
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  • Downward layering horizontal drift high-sublevel filling mining method
  • Downward layering horizontal drift high-sublevel filling mining method
  • Downward layering horizontal drift high-sublevel filling mining method

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 , figure 2 , image 3 As shown, a downward layered horizontal approach high-section filling mining method includes the following steps:

[0030] Step 1) Divide the ore block: Divide the ore body into the middle section according to the vertical direction. Each stratum divides the approach within the stratum. The approach width is 4m~5m and the length is 50m~70m. The panel is divided along the ore body trend. The panel area is divided according to the principle of equal area. body level thickness;

[0031] Step 2) Accurate cutting: Excavate the middle vein-piercing transportation roadway 13 and the middle vein-piercing roadway 14 at the bottom of the middle section along the vein and piercing direction, and excavate along the vein and piercing direction at the top of the middle section to fill the return air duct 12 and piercing ve...

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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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Application Information

Patent Timeline
24 Mar 2020
Publication
CN110905516A
IPC
E21C41/22; E21F15/00; E21F1/00
CPC
E21C41/22; E21F1/00; E21F15/00
Inventors
张利; 寇永渊