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Horizontal moderately thick mine body compartment type filling mining method

A mining method and box filling technology, applied in the fields of filling, ground mining, mining equipment, etc., can solve the problems of gob subsidence and low recovery rate, reduce the difficulty of management, improve environmental protection, and reduce unit costs Effect

Active Publication Date: 2014-06-18
HUBEI SHANSHUYA MINING SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Due to no filling, it is easy to cause the goaf to collapse
At the same time, in order not to cause the goaf to collapse, avoid geological disasters, and affect the recovery, it is necessary to keep the ore pillars, and the recovery rate is low

Method used

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  • Horizontal moderately thick mine body compartment type filling mining method
  • Horizontal moderately thick mine body compartment type filling mining method
  • Horizontal moderately thick mine body compartment type filling mining method

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 4 As shown, the mining method of this embodiment is as follows:

[0026] Step (1) Roof cutting: Excavate the upper channel along the roof of the mine. It is required that the upper channel must be constructed along the roof of the mine. The ore in the upper channel should be removed at one time. The height of the roof cutting can be 3-5m, and the width of the upper channel and the bottom road 4.5---6m.

[0027] Step (2) Roof protection: It is required that the progress of the roof protection must be close to the roof cutting working face, and the bolt connection bars or the bolt connection bars are used for spraying support. Figure 4 (a) shows step (1) and step (2). First, excavate 2 upper passages along the roof of the ore seam. Passage 1 and passage 2 reach the boundary of the mine house, which is the roof cutting. No top and bottom pillar...

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Abstract

The invention discloses a horizontal moderately thick mine body compartment type filling mining method. Manual supporting columns are laid in at least a part of a stoping channel formed between mine layer top plates and mine layer bottom plates. A laying method comprises that at least one layer of steel wire meshes are laid along two sides of a channel bottom plate, barren rocks are filled in the steel wire meshes, and concrete is conveyed to the inner sides of the steel wire meshes to form the manual supporting columns. The horizontal moderately thick mine body compartment type filling mining method can mine all ores under the condition of ensuring security of a mining area, ensures that a recovery ratio reaches more than 90%, and meanwhile adopts byproducts, namely the barren rocks, produced by tunneling when filling is carried out, solves the stacking processing problem of the barren rocks, and enables mining of a thick mine body to be safe and environment-friendly.

Description

technical field [0001] The invention relates to a mining technology, in particular to a box-type filling mining method for a horizontal medium-thick ore body. Background technique [0002] The vast majority of phosphate mines in Hubei do not fill the gobs, and a few mines only partially fill the goaf under the structure, and cannot fill the goaf roof. Due to the lack of filling, it is easy to cause the goaf to collapse. At the same time, in order not to collapse the goaf, avoid geological disasters, and affect recovery, it is necessary to retain the ore pillar, and the recovery rate is low. Contents of the invention [0003] The purpose of the present invention is to provide a new mining method, which can make the recovery rate of the ore seam reach more than 90%, and effectively utilize the waste rock produced by the excavation at the same time, and solve a series of safety and environmental protection problems in the surface subsidence of the goaf. [0004] The technic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16E21F15/00
Inventor 易胜强陈翔石明汉何长松何涛常志锋
Owner HUBEI SHANSHUYA MINING SCI & TECH DEV
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