Mechanized mining method for gently-inclined medium-thick ore body

A technology with a gentle slope, medium thickness, and mining methods, which is applied in ground mining, underground mining, special mining, etc. It can solve the problems of long production line, low ore recovery rate, ore loss, etc., and achieve a high degree of mechanization and cutting engineering The effect of small amount and high ore recovery rate

Active Publication Date: 2018-04-03
UNIV OF SCI & TECH BEIJING +1
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Problems solved by technology

When the room-and-pillar method is used to mine gently inclined medium-thick ore bodies, it is divided into shallow-hole room-pillar method and medium-deep hole room-pillar method. Field work, low efficiency and low safety
The middle and deep hole room and pillar method is affected by the thickness of the ore body itself, so it cannot take advantage of the high efficiency of the medium and deep hole, and the mining and cutting work is relatively large; no matter whether the shallow hole room and pillar method or the medium and deep hole room and pillar method is adopted, A large number of ore pillars need to be left, and many ore pillars are ba

Method used

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  • Mechanized mining method for gently-inclined medium-thick ore body
  • Mechanized mining method for gently-inclined medium-thick ore body
  • Mechanized mining method for gently-inclined medium-thick ore body

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[0040] Implementation case:

[0041] The gently sloping medium-thick ore body is produced in a layered like layered form. The inclination angle of the ore body is 5-20°, the thickness is 10-16m, and the strike length of the ore body is 755-890m. The ore rock in this mining area has good stability. , The mining of ore bodies is less affected by groundwater, and the engineering geological conditions are of medium type.

[0042] Accuracy and cutting: such as figure 1 , 2 , 3 and 4, the gently inclined medium-thick ore body is divided into panels, and the ore bodies in the panel are divided into strips along the direction of the ore body, that is, the strips in the panel are divided into one-step stope 11 and Two-step stope 10, every 12 stopes are used as a panel, and a panel exit chute 3 is arranged on the bottom side of the panel. The lower part of the panel chute is connected to the vein-through roadway 16, and the vein-through roadway 16 is connected to the middle section of the tr...

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Abstract

The invention provides a mechanized mining method for a gently-inclined medium-thick ore body, and belongs to the technical field of mining. The method comprises the following steps: dividing a gently-inclined medium-thick ore body into a panel area, dividing the ore body in the panel area into strips in a heading direction, driving a pseudo-inclined mining uphill roadway and a return air uphill roadway in the inclining direction of the ore body, driving a stope connecting roadway in a mining uphill direction and a return air uphill direction respectively, reserving a top safety ore pillar anda bottom safety ore pillar at the top and the bottom of each section respectively, and reserving a safety ore pillar between adjacent stopes in the heading direction of the ore body. The strips in the panel area is divided into one-step stopes and two-step stopes, the ore body is stoped at intervals sequentially from bottom to top, the one-step stopes are mined first, and then the two-step stopesare mined. After filling and final setting of all one-step and two-step stopes, uphill safety ore pillars, top safety ore pillars and bottom safety ore pillars are recovered. The method provided by the invention has the advantages of high mechanization degree, large production capacity, small mining and cutting work amount, high ore recovery rate, low lean loss rate and good safety.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a mechanized mining method for a gently inclined medium-thick ore body. Background technique [0002] With the advancement of mechanization and mining technology, the application of large-scale equipment in the field of mining engineering is becoming more and more extensive. In order to improve the level of mining technology, intelligent mines have become the development trend of future mining, but intelligent mines are inseparable from high-efficiency Therefore, it is necessary to find a mechanized and efficient mining method for gently inclined medium-thick ore bodies to achieve safe, economical, efficient and mechanized mining. [0003] The mining methods of a large number of gently inclined medium-thick ore bodies mainly adopt the room-and-pillar method, the segmented open field and subsequent filling method, and the layered filling mining method. When the room-and-pillar met...

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Application Information

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IPC IPC(8): E21C41/16
CPCE21C41/16
Inventor 吴爱祥王贻明陈顺满马浩吉陈勋张晋军郑学敏胡国斌杨鹏
Owner UNIV OF SCI & TECH BEIJING
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