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Non-pillar sublevel mining cemented filling mining method

A technology of cemented filling and mining methods, applied in the direction of filling, ground mining, mining equipment, etc., can solve the problems of complex production process, low production efficiency, high mining cost, etc., and achieve simplified mining process, reduced filling cost, high filling density sexual effect

Inactive Publication Date: 2016-08-31
SOUTHWEAT UNIV OF SCI & TECH
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Problems solved by technology

[0005] Purpose of the invention: In order to solve the outstanding problems of complex production process, high mining cost and low production efficiency in the downward layered horizontal approach cemented filling mining method, and to seek a more efficient and economical solution under the premise of ensuring the safety of mining production simplifies the production process, improves mining production efficiency, reduces ore-forming costs, improves the technical and economic benefits of mining and the market competitiveness and viability of enterprises

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  • Non-pillar sublevel mining cemented filling mining method
  • Non-pillar sublevel mining cemented filling mining method
  • Non-pillar sublevel mining cemented filling mining method

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Embodiment Construction

[0027] An embodiment of the present invention is:

[0028] A. According to the determined segmental height (10-15m), arrange a segmental mining roadway to fill the connecting roadway according to a certain distance (usually about 20m) in the surrounding rock of the footwall (or hanging wall) of the ore body; According to the determined approach spacing (10-15m), a number of mining access routes are arranged vertically to the ore body, and at the same time, ensure that the upper and lower segmental mining routes are strictly in accordance with the principle of staggered arrangement and form a diamond-shaped mining interval structure; when arranging segmental mining and filling In the surrounding rock on the side of the connecting road, turn-back ramps and segmented connecting roads are arranged to establish the stope connection between each segment and between the segment and the mining approach. The support method of mining roadway, sub-section connecting roadway and sub-section...

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Abstract

The invention discloses a non-pillar sublevel mining cemented filling mining method. The method is characterized in that sublevels are used as stoping units; stoping drifts are arranged in a staggered way in upper and lower sublevels; rhombic components are stoped in a sublevel mining way; the paces are the basic stoping units; deep hole breakdown is performed in upward fan shapes; multi-row hole short-delay blasting is performed; ore removal is performed under the barnyard condition; after the mining, the cemented filling is performed in time; and rhombic cushions capable of being cyclically used for filling partition wall reserved blasting compensation spaces, blasting free surfaces and the like of the partition wall are used, so that a series of problems of complicated and expatiatory production process, low mining efficiency, high mining cost and the like of the existing top slicing horizontal stoping drift cemented filling mining method can be solved under the condition of steeply-inclined large and thick ore bodies.

Description

technical field [0001] The invention relates to an underground mine mining method, and belongs to the engineering technical field of improving mine mining efficiency and reducing mining cost by using a new mining method and process. Background technique [0002] The down-layered horizontal approach cemented-fill mining method is an underground mining method that is suitable for steeply inclined thick and large ore bodies, where the surface does not allow caving and the ore value is high. It is also the Jinchuan mining area, the largest nickel-copper metal resource development base in my country. main mining method. However, this mining method has the following outstanding disadvantages: (1) The mining process is complicated and lengthy; (2) The production efficiency of the approach mining and shallow hole falling is low; Poor ground surface and stope roadway settlement and deformation; (4) stope roadway ground pressure is high, and support is difficult; (5) mining cost is hi...

Claims

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Application Information

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IPC IPC(8): E21C41/16E21F15/00
CPCE21C41/16E21F15/00
Inventor 张志贵钟敏赵周能陈星明苏华友
Owner SOUTHWEAT UNIV OF SCI & TECH
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