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Two-time groove broaching high-layer stoping mining method

A mining method and trough-drawing technology, which are applied in ground mining, underground mining, special mining, etc., can solve the problems of safe processing time field, many mining process cycles, and small mining height, so as to reduce mining cost and cycle times , Increase the effect of recovery height

Pending Publication Date: 2022-01-18
深圳市中金岭南有色金属股份有限公司凡口铅锌矿 +1
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AI Technical Summary

Problems solved by technology

As far as the mining of a mine section is concerned, the mining height is small, and the mining process cycle is correspondingly more, the cost is increased, and the safety processing time is longer, and the risk is correspondingly increased

Method used

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  • Two-time groove broaching high-layer stoping mining method
  • Two-time groove broaching high-layer stoping mining method
  • Two-time groove broaching high-layer stoping mining method

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Embodiment Construction

[0032] The invention expands the compensation space of the stope by carrying out one horizontal blasting and two upward blasting in the pulling groove area arranged at the end of the stope, and increases the mining height during mining. Next, the double channeling and high-layer back mining method of the present invention will be described for a thinner (2-10 meters) ore body above an inclination.

[0033] Bottom pull groove: see figure 1 and figure 2 , figure 1 For being applicable to the top view of the stope of the high-layered back mining method of twice drawing slot of the present invention, figure 2 It is a transverse sectional view of the groove area at the end of the bottom lane of the present invention. It can be seen from the figure that before mining, a control line is set for the ore body along the ore body trend, and the range of stope A is delineated. In the stope A, excavate the mine road along the direction of the ore body 1 to the end of the ore body 1 o...

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Abstract

The invention discloses a two-time groove broaching high-layer stoping mining method. The method comprises the steps of undercutting and groove broaching, courtyard construction, mining body cutting, first-time lifting of a groove broaching area, second-time lifting of the groove broaching area, undercutting roadway side collapse, filling and the like. The method is high in stoping efficiency, small in exposed area of the working face, safe in operation and low in cost.

Description

technical field [0001] The invention relates to the field of mining, in particular to a high-layer back-cutting mining method for a trough. Background technique [0002] The upward layered filling mining method is one of the commonly used methods in mining. It is generally applicable to ore bodies above the slope (the dip angle is greater than the natural repose angle) where the ore is stable and the surrounding rock is not stable. It adopts bottom-up layered mining. The ore is mined first, and then filled with filling materials to support the two sides of the goaf and serve as a working platform. Among them, the method of "one-time troughing and side collapse at the same time" is often used during mining, specifically: first along the length of the ore body Excavate the mine road to the end of the ore body or the position of the control line to form a bottom roadway; then construct a shaft in the bottom roadway to the upper middle of the ore body; then construct horizontal ...

Claims

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Application Information

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IPC IPC(8): E21C41/22F42D1/00F42D3/04
CPCE21C41/22F42D1/00F42D3/04Y02P10/20
Inventor 谢胜亢太鹏钟杰曹铭宇梁德义孙勇黄强王文洋崔国伟于文涛黄燕华
Owner 深圳市中金岭南有色金属股份有限公司凡口铅锌矿
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