Safe and high-efficiency mining method for metal mine in mountainous area

A mining method and metal technology, applied in safety devices, mining devices, ground mining and other directions, can solve problems such as large economic losses, casualties, etc., and achieve the effects of improving enterprise economic benefits, reducing costs, and improving resource recovery rates.

Inactive Publication Date: 2015-10-21
CHINA THREE GORGES UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Once a land disaster accident occurs, it will cause large economic losses and even casu

Method used

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  • Safe and high-efficiency mining method for metal mine in mountainous area
  • Safe and high-efficiency mining method for metal mine in mountainous area
  • Safe and high-efficiency mining method for metal mine in mountainous area

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the examples, but the protection scope of the present invention is not limited to the scope expressed in the examples.

[0040] 1) Mining and cutting engineering:

[0041] Such as figure 1 As shown, multiple ore-exiting roads 3 are excavated along the vein transportation lane 1 to the ore body, and the raised shaft connecting roads are respectively excavated to the interstitial columns 13 on both sides of the mine house, that is, 2 and 4 in the figure, and are excavated to the rear edge of the ore body. The ore body tends to use the dip angle as the inclination to excavate the raised shaft, that is, 5 and 6 in the figure, excavate a number of connecting roads 7 entering the stope in the vertical direction of the raised shaft, excavate the cutting roadway along the ore body, and excavate the cutting roadway. Help to the boundary 14 of the ore body, form the free surface at the bottom of the mine h...

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Abstract

The invention relates to a safe and high-efficiency mining method for a metal mine in a mountainous area. The safe and high-efficiency mining method for the metal mine in the mountainous area specifically comprises techniques such as pillarless short-hole shrinkage mining, mine solid waste filling and ore pillar recovery. A pillarless short-hole shrinkage mining method is firstly adopted for mining, and then gobs are filled by using tailings and throwing tailings. After filler gelation, certain strength is obtained, the degree of ground surface subsidence can be relieved, and the frequency and scale of ground surface geological disasters induced by mining influence in the mine in the mountainous area are reduced; the method provided by the invention is low in cost, the mineral resource recovery rate is high and greater economic benefits can be produced; the application scope is wide and the method is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of safe and efficient mining of metal mines in mountainous areas, and relates to a safe and efficient mining method for metal mines in mountainous areas, which specifically includes: mining without bottom pillars and shallow holes, mine solid waste filling, ore pillar recovery, etc. technology. Background technique [0002] 1) Potential safety hazards of mining in mountainous areas [0003] The geological structure and deposit conditions of mines in mountainous areas are relatively complex, and the terrain of mining areas is undulating and changeable. When the ore body below the surface is mined, the balance conditions of the original strata are destroyed, and the overlying strata in the goaf are deformed and damaged (caving, cracking, sinking), resulting in cracking and subsidence on the surface. With the continuous increase of the amount of ore mined, the scope of the mined-out area is also continu...

Claims

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Application Information

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IPC IPC(8): E21C41/22E21F15/00E21F17/103
Inventor 吴秀仪邓华锋
Owner CHINA THREE GORGES UNIV
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