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A high subsection up-going deep hole drop ore free zone following filling mining method

A backfill mining method and a technology of zero empty area, applied in the fields of backfill, mining equipment, earthwork drilling, etc., can solve the problems of high support cost, complicated procedures, low production capacity, etc., to ensure the stress structure and stability, The effect of efficient recovery

Active Publication Date: 2016-06-29
CENT SOUTH UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

Adopting the traditional method of empty field and caving will inevitably lead to severe poverty and serious hidden dangers, and the application of conventional filling method has high support costs, complicated procedures, and low production capacity. In addition, the mechanized and large-scale application of conventional mining faces great obstacles.

Method used

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  • A high subsection up-going deep hole drop ore free zone following filling mining method
  • A high subsection up-going deep hole drop ore free zone following filling mining method
  • A high subsection up-going deep hole drop ore free zone following filling mining method

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 , the present invention provides the mining method of following the filling of the zero-empty area of ​​the deep hole falling into the deep hole in the high section, and the steps are as follows:

[0031] (1) The mine houses are arranged parallel to the ore body, and the pillars of the mine houses are mined at intervals. The height of the mine house is the height of the stage, and the thickness is the effective service thickness of 1 to 2 rows of ore-receiving funnels;

[0032] (2) Parallelly arrange the transport level roadway along the upper and lower walls of the bottom of the ore body. The transport level roadway is excavated into the ore body through the ore exit horizontal roadway. The ore exit cross roadway is dug and expanded to form the ore receiving funnel, and then continue...

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Abstract

The invention discloses a high-segmentation upward deep hole ore extraction zero-dead-zone following filling mining method. Firstly, a drilling chamber is constructed at the top end of a stage stope room, an operating space is formed through supporting, a mine collecting structure is established at the bottom end, upward chambering is carried out, a compensation space is formed, and the mining and cutting work is finished; secondly, a vertical deep hole is drilled in the drilling chamber, and the configuration of a boundary presplitting smooth blasting bomb hole is matched; thirdly, the upward segmentation blasting is carried out, ore reserving and ore removing are carried out, the zero dead zone in the ore removing process is ensured, and meanwhile the compensation space is guaranteed; fourthly, after appropriate ore drawing in the final blasting, an interlayer is arranged on the top of an ore heap, and the interlayer is covered with dead rock to fill the top dead zone along with the ore drawing; fifthly, after ore drawing is finished, stope room dead rock cemented filling is achieved through the potting material at the top end. The mining method is suitable for the environment where mine fragmentation is not stable, the large dead zone is not allowed, but high-segmentation, large-scale and large-yield thick and large ore body mining is urgent. The mining method has the advantages that the structure is simple, and high efficiency and economic efficiency are achieved.

Description

technical field [0001] The invention relates to a mining method for underground metal mines, in particular to a high-section upward ore-dropping and filling mining method for deep holes, which is mainly suitable for inclined medium-thick ore bodies or thick ore bodies with broken ore rocks and poor stability. . Background technique [0002] For inclined medium-thick ore bodies or thick ore bodies with broken ore rocks and poor stability, due to strict restrictions on the size of the gob, it is bound to face the dilemma of restricted stope scale and limited production capacity. Adopting the traditional method of empty field and caving will inevitably lead to severe poverty and serious hidden dangers, and the application of conventional filling methods has high support costs, complicated procedures, and low production capacity. In addition, the mechanized and large-scale application of conventional mining faces great obstacles. Therefore, the contradiction between the limitat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F15/00
CPCE21F15/00
Inventor 邓红卫周科平周彦龙康海岳
Owner CENT SOUTH UNIV
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