Prevention and control method for underground ore mining ground pressure disasters

A preventive control and ore mining technology, applied in shaft lining, underground chamber, mining equipment, etc., can solve problems such as unsuitability, prevention and control of ground pressure disasters that are difficult to achieve expected goals, etc., to increase recovery and meet production development needs , The effect of reducing the loss of ore resources

Active Publication Date: 2019-07-16
CHINA HUAYE GROUP
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AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a method for preventing and controlling ground pressure disasters in underground ore mining, so as to solve the problem that the prevention and control of ground pressure disasters in the prior art is difficult to achieve the expected goal, and it is not suitable for the stope of blasting mining. technical problem

Method used

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  • Prevention and control method for underground ore mining ground pressure disasters
  • Prevention and control method for underground ore mining ground pressure disasters
  • Prevention and control method for underground ore mining ground pressure disasters

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Embodiment Construction

[0025] Embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art would recognize that the described embodiments can be modified in various ways or combinations thereof without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Also, in this specification, the drawings are not drawn to scale, and like reference numerals denote like parts.

[0026] figure 1 It is a schematic flow chart of the ground pressure disaster prevention and control method described in the present invention, as figure 1 As shown, the ground pressure disaster prevention and control method described in the present invention comprises the following steps:

[0027] Step S1, obtaining the position of the mining block in the underground horizontal stope, and determining the position of the mining block through the c...

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Abstract

The invention discloses a prevention and control method for underground ore mining ground pressure disasters. The prevention and control method comprises the following steps that the position of a stoping block of an underground horizontal stope is obtained; g the position of the stoping block is compared and verified with a corresponding satellite picture; according to the position relation between an upper horizontal roadway and a lower horizontal roadway and a comparison and verification result, an open-air slope slippage model is obtained; a ground pressure action area is determined according to the open-air slope slippage model; and for the ground pressure action area, a prevention mode of changing an ore body stoping sequence, a steel grating anchor supporting mode and a reinforced concrete wall supporting mode is adopted. The method can effectively prevent and control ground pressure disasters, achieves the expected target, and guarantees the safety of ore production.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a method for preventing and controlling ground pressure disasters in underground ore mining. Background technique [0002] At present, more and more mines are converted to underground mining after open-pit mining in the early stage. After the open-pit mining in the early stage, the height of the formed slope is generally above 100m, and the slope is mostly above 40°. With the gradual expansion of the goaf formed by underground ore mining or the filling area of ​​loose flowing waste rock (non-filling mining) , the deformation and slippage of the open pit slope (especially the hanging wall slope) will expand accordingly, forming continuous ground pressure activities on the underground mining shaft and roadway engineering, and the local pressure will appear concentrated. The roadways in the area were seriously deformed and damaged, and the affected area gradually expanded with the a...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21D11/15E21D20/00E21D11/10
CPCE21D11/10E21D11/15E21D11/152E21D20/00E21F17/18E21F17/185
Inventor 李海亮吕保郝红国张健黄正全泮志亮宋勃
Owner CHINA HUAYE GROUP
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