Pre-control roof medium-length hole mining method novel two-step stope room

A mining method and pre-control roof technology, applied in the field of mine houses, can solve the problems of overall collapse, large safety problems, and difficult management of the two-step mine roof, so as to improve the safety factor, improve safety, and avoid overall collapse. the effect of taking

Inactive Publication Date: 2016-05-04
SHANDONG HUALIAN MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is more difficult to mine in the second-step mine house, and at the same time, the roof of the second-step mine house is difficult to manage, and it is prone to overall collapse, resulting in a greater safety problem

Method used

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  • Pre-control roof medium-length hole mining method novel two-step stope room

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Effect test

Embodiment 1

[0015] Embodiment 1: as figure 1 As shown, the novel two-step mining house of the pre-controlled roof and middle deep hole mining method described in the present invention is provided with a one-step mining house 1 and a second-step mining house 2, and the first-step mining house 1 and the second-step mining house 2 are arranged in parallel to form a mining unit , Temporary time columns 3 are arranged between two mining units, and inter-columns 4 are arranged on both sides of the two mining units with temporary time columns 3 in the middle.

Embodiment 2

[0016] Embodiment 2: On the basis of the structure described in Embodiment 1, the distance between the two intercolumns 4 is 100m, and the width of the temporary time column 3 is 10m.

[0017] Operation steps and working principle:

[0018] The novel two-step mining house of the pre-controlled roof middle-depth hole mining method described in the present invention is provided with a one-step mining house 1 and a second-step mining house 2, and the one-step mining house 1 and the second-step mining house 2 are arranged in parallel to form a mining unit, two Temporary time columns 3 are arranged between the mining units, and inter-columns 4 are arranged on both sides of the two mining units with temporary time columns 3 in the middle.

[0019] In the new two-step mining house with the medium and deep hole mining method of the pre-controlled roof, the span of the middle and deep hole mining room is 100m, and the two sides are reserved spacers 4 for back mining and entering servic...

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Abstract

A purpose of the present invention is to provide a pre-control roof medium-length hole mining method novel two-step stope room, and belongs to the field of stope rooms. According to the present invention, a first-step stope room and a second-step stope room are arranged and are aligned in a parallel manner to form an excavating unit, a temporary rib pillar is arranged between the two excavating units, and rib pillars are arranged on both sides of the two excavating units with the temporary rib pillar arranged in the middle, such that the whole collapse accident cannot occurs during the mining process, and the advantages of safety and reliability are provided.

Description

technical field [0001] The purpose of the present invention is to provide a novel two-step mining house with the method of pre-controlled roof-medium deep hole mining, which belongs to the field of mining houses. Background technique [0002] In the mining process of the pre-controlled roof medium and deep hole mining method, according to the mining process arrangement, it is divided into one-step mine recovery and two-step mine recovery. Its original idea of ​​mining is one-step mining room and second-step mining room interval mining. In this method, the mining of the second-stage mine house is more difficult, and the roof of the second-stage mine house is difficult to manage, and the overall collapse is prone to occur, resulting in a relatively large safety problem. Contents of the invention [0003] The purpose of the present invention is to provide a new type of two-step mining house with the method of pre-control roof-middle deep hole mining, which will not cause ove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/16
Inventor 王磊李文英张清河
Owner SHANDONG HUALIAN MINING
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