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Deep-hole subsequent filling mining method at stage of environmental reconstruction

A filling mining method and deep hole technology, which can be used in filling materials, surface mining, mining equipment, etc., and can solve problems such as failure to apply successfully.

Active Publication Date: 2019-09-10
CHINA MINMETALS CHANGSHA MINING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the condition of ore and rock fragmentation, the mining method of stage deep hole and subsequent filling cannot be successfully applied.

Method used

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  • Deep-hole subsequent filling mining method at stage of environmental reconstruction
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  • Deep-hole subsequent filling mining method at stage of environmental reconstruction

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Embodiment Construction

[0037] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them; based on the embodiments of the present invention, All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] Such as figure 1 , figure 2 with image 3 As shown, a kind of environmental reconstruction stage deep hole subsequent filling mining method provided by the embodiment of the present invention comprises the following steps:

[0039](1) Divide the ore body 15 into panels, divide ore blocks in the panels, organize mining with ore blocks as units, and divide the ore blocks into a one-step stope 18 and a two-step stope 19. When the horizontal thickness of the ore body is less than 3...

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Abstract

The invention discloses a deep-hole subsequent filling mining method at a stage of environmental reconstruction, and is mainly applicable to stoping of ore-rock fragmentation and thick to extremely thick inclined ore bodies. The ore body is divided into a panel area and an ore block, wherein the ore block is internally divided into two steps of a first step stope and a second step stope for stoping; firstly, a drift-and-drill method is used for stoping the ore bodies in a range of top pillar of the upper part of the first step stope and the second step stope, and the ore body at the bottom ofthe second step stope, and the first step stope and the second step stope are filled with high strength paste cement filling, then the drift-and-drill method is used for stoping the upper panel ore bodies of the first step stope and the second step stope, and finally, a stage deep-hole subsequent filling method is used for stoping the second step stope. According to the application deep-hole subsequent filling mining method, the safe working conditions of the stoping of the type of ore body can be significantly improved, the production capacity of the stope is ensured, the dilution and loss rate is reduced, and the amount of accurate mining cutting work is reduced.

Description

technical field [0001] The invention relates to the technical field of mining methods in underground mines, and is a deep hole subsequent filling mining method in the stage of environmental reconstruction, which is mainly applicable to mining of broken ore rocks and thick to extremely thick inclined ore bodies. Background technique [0002] Previously, the caving method was often used for mining when the ore rock was broken and the thick to extremely thick inclined ore body was mined. The caving method has the advantages of large stope production capacity and simple stope layout structure, etc., but it cannot effectively control ore loss and dilution, and large-scale mining using the caving method will inevitably lead to surface subsidence, deformation and subsidence, and the deeper the mining depth, the The larger the scope of surface subsidence deformation and subsidence is, the applicable scope of current caving method is getting smaller and smaller. The filling method h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22E21F15/00
CPCE21C41/22E21F15/00
Inventor 万兵李强李向东刘东锐周益龙王亚军张海云王玉丁张卫星代转
Owner CHINA MINMETALS CHANGSHA MINING RES INST
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