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Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope

A technology with a gentle slope, medium thickness and structural size, which is applied in ground mining, underground mining, special mining, etc. It can solve the problems of difficulties in mining pillars, inability to recover, and large-scale filling of goafs that cannot be mined out, so as to achieve less filling materials. , high production efficiency and safe operation

Active Publication Date: 2015-05-20
CENT SOUTH UNIV
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Problems solved by technology

However, in mines with insufficient supply of filling raw materials, or low-grade ore bodies with sensitive mining and filling cost control, it is impossible to carry out large-scale filling of gobs, and the use of filling mining methods is limited, which makes it difficult or even impossible to mine pillars. the puzzle

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  • Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope
  • Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope
  • Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing.

[0025] see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , divide the panel along the ore body trend, divide the panel into sections, and leave continuous pillars 7 along the strike between the sections. The structural size of the continuous pillar 7 is 10m, the stope width is 20m, and the length is 80m. The stope is arranged along the strike, and the stopes of each section are connected by the turn-back mining quasi-slope 5, and the chute 6 is arranged in the continuous ore pillar at the bottom of the panel, and the stage transportation roadway 8 of the footwall of the ore body is connected to form a middle transportation system. A roof cutting roadway 15 is arranged in the middle of the stope roof, and is connected with the filling roadway 12 through the roof cutting connecting road 3. Excavate the rock-drilling ore-out approach 4 from the mining slope to...

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Abstract

The invention discloses a mining method with an adjustable and controllable structure size of a gentle dip medium-thickness ore body strip column reconstructed stope. The work of a recovery process is safe by adopting an advanced top cutting anchor rod support roof; efficient recovery of ores is realized by middle-deep hole ore break down, retreating type recovery and ore removal of a carry scraper; a studding is not formed along the inclined direction of an ore body and thus the loss rate of ores is reduced; and a goaf roof is supported by a waste stone slip casting glue structured artificial strip column so that the effective management on ground pressure of the stope is realized. The mining method with the adjustable and controllable structure size of the gentle dip medium-thickness ore body strip column reconstructed stope, disclosed by the invention, has the advantages that the working is safe, the production efficiency is high, the loss rate of the ores is relatively low, and few filling raw materials are needed.

Description

technical field [0001] The present invention relates to a mining method, in particular to a slow-dipping and medium-thick ore body suitable for underground mines where the supply of filling materials is insufficient, the roof and floor of the ore body are moderately stable, the grade of the ore is low, and the ground surface does not allow caving. A mining method with adjustable and controllable structure size of inclined medium-thick ore body column reconstructed stope. Background technique [0002] Due to the limitation of the exposed area of ​​the goaf in the mining of moderately stable and gently inclined medium-thick ore bodies, traditional mining methods often reduce the stope area and reserve a large number of continuous ore pillars to ensure the safety of the mining process. Then fill the goaf and recover the ore pillar in two steps. However, in mines with insufficient supply of filling raw materials, or low-grade ore bodies with sensitive mining and filling cost co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22
CPCE21C41/22
Inventor 邓红卫周科平李杰林李斌郭洪泉王敏罗黎明
Owner CENT SOUTH UNIV
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