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A Mining Method for Gently Inclined Thin Ore Body

A mining method and thin ore body technology, applied in the field of gently inclined thin ore body mining, can solve problems such as loss and large ore

Active Publication Date: 2019-07-05
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Gently inclined thin ore bodies usually refer to ore bodies with a dip angle of less than 15° and an ore body thickness of less than 3m. Based on the mining experience of non-ferrous metals, gold, and uranium mines at home and abroad, comprehensive mining and room-and-pillar mining methods are often used for mining thin inclined ore bodies. However, the above Both mining methods require a large number of ore pillars to control ground pressure, resulting in greater ore loss

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  • A Mining Method for Gently Inclined Thin Ore Body
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  • A Mining Method for Gently Inclined Thin Ore Body

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Embodiment Construction

[0022] The ore body of a copper mine in Xinjiang is layer-like, the ore body dip angle is 18°-25°, the thickness of the ore body is about 0.7-1.2 m, and the thickness of most of the ore body is below 0.8 m, which belongs to the typical gently inclined thin ore body. Adopt the room and pillar mining method, in order to reduce the dilution loss rate, adopt the mining method of the present invention to mine the mine, the layout of the ore block and the schematic diagram of the structure are as follows figure 1 and figure 2 As shown, the specific steps are as follows:

[0023] a. Dividing ore blocks: Divide the ore body into ore blocks along the ore body trend. The ore blocks are arranged in a long-walled manner. The inside of the ore block is divided into strips along the trend and divided into layers along the vertical direction. The ore block is 60m high and 100m wide; Set the bottom pillar 1, the middle pillar 2 and the top pillar 3 in the ore block, the bottom pillar 1 is 5...

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Abstract

The invention relates to a method for exploiting minerals, in particular to a method for exploiting gently-inclined thin ore bodies. The method includes dividing ore blocks; carrying out preparation cutting engineering; carrying out stoping ore removal engineering; managing ground pressures. The method has the advantages that merits of full-face processes, waste-lifting filling mining processes, blasting-power handling processes and caving processes are integrated with one another, accordingly, ore can be recovered to the greatest extent, ground pressure hazards can be handled, and the shortcomings of single mining processes can be overcome.

Description

technical field [0001] The invention relates to a mineral mining method, in particular to a gently inclined thin ore body mining method. Background technique [0002] Gently inclined thin ore bodies usually refer to ore bodies with an inclination angle of less than 15° and an ore body thickness of less than 3m. Based on the mining experience of non-ferrous, gold, and uranium mines at home and abroad, comprehensive mining and room-and-pillar mining methods are often used for mining inclined thin ore bodies. However, the above Both mining methods need to leave a large number of ore pillars to control the ground pressure, resulting in greater ore loss. Therefore, it is necessary to find a new mining method for gently inclined thin ore bodies that can effectively control ground pressure and reduce ore loss. Contents of the invention [0003] The purpose of the present invention is to provide a method for mining gently inclined thin ore body aiming at the problems existing in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/22
CPCE21C41/22
Inventor 周健强张海磊刘财林张亭张睿柴衡山孟慧媚高志荣
Owner NORTHWEST RES INST OF MINING & METALLURGY INST