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Stope point column supporting, reinforcing and recovering method

A recycling method and point post technology, applied in ground mining, mining equipment, earth-moving drilling, etc., can solve the problems of difficult recycling, low efficiency, and difficult to guarantee operation safety, so as to ensure the safety and improve the strength of the point post. , the effect of security

Pending Publication Date: 2021-11-09
SANSHANDAO GOLD MINE SHANDONG GOLD MINING LAIZHOU
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention proposes a method for reinforcement and recovery of stope point pillar support, the purpose of which is to solve the problems of easy destruction of point pillar integrity, difficult operation safety guarantee, low efficiency, and difficult recovery in conventional point pillar protection and recovery. The problem of high recovery dilution rate

Method used

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  • Stope point column supporting, reinforcing and recovering method
  • Stope point column supporting, reinforcing and recovering method
  • Stope point column supporting, reinforcing and recovering method

Examples

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Embodiment Construction

[0040] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0041] Such as figure 1 , a stope point column support reinforcement and recovery method is based on the long anchor cable 1 to pre-reinforce the stope point column 6 before the stope ore body is recovered, and at the same time use the long anchor cable 1 to drill holes 12 and guide shafts 8 Recovering the point column 6 effectively ensures that the integrity of the point column 6 is not damaged during stope construction. In addition, it further ensures that the point column 6 can safely support the stope roof during stope recovery to ensure the safety of mining, and at the same time simplifies the point column 6. The recovery method ensures the safety of the point column 6 recovery operation and effectively reduces the dilution of the ore 17 recovered by the point column 6.

[0042] The core idea of ​​this method is:

[0043] 1. Mining support stage....

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Abstract

The invention discloses a stope point column supporting, reinforcing and recovering method. The method comprises the following steps that channels are constructed at the upper part and the lower part of a point column, the point column is supported and reinforced by adopting a long anchor cable, and the point column is maintained by adopting a flexible net; after stoping of a stope is finished, a charging channel is constructed under the protection of a filling body of the upper channel of the point column, an ore removal channel is constructed on the lower channel of the point column, a pilot shaft is constructed inside the point column, the pilot shaft serves as a free face, and charging blasting is conducted in a drill hole of the long anchor cable, so that the point column is recovered. According to the stope point column supporting, reinforcing and recovering method, the problems that the integrity of the point column is prone to damage, the operation safety is difficult to guarantee, the efficiency is low, the recovery difficulty is high and the recovery dilution rate is high in the conventional point column protection and recovery process are solved.

Description

technical field [0001] The invention relates to a method for supporting and strengthening stope point columns and realizing recovery. Background technique [0002] In order to avoid subsidence and landslides on the surface when mining underground ore bodies in rock gold mines, the filling mining method is often used for mining. After the goaf is formed, even the goaf is filled to balance the ground pressure in the goaf and ensure stope mining. Safe and stable during the period. When using the filling mining method to mine thick and large ore bodies with stable surrounding rocks, in order to further increase the production capacity of the stope, the point column method is often used for mining, that is, a certain number of point columns are arranged in the stope to support the stope roof, and then increase The scope of stope mining is to obtain maximum production efficiency, which is conducive to efficient organization of production. [0003] In the process of using the poi...

Claims

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Application Information

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IPC IPC(8): E21C41/22E21D20/00E21F15/00E21F15/04F42D3/00F42D1/00
CPCE21C41/22E21D20/003E21F15/00E21F15/04F42D3/00F42D1/00
Inventor 贾万玉刘再涛侯成录陈兵宇张小刚刘国栋王龙赵龙盖新强李威
Owner SANSHANDAO GOLD MINE SHANDONG GOLD MINING LAIZHOU
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