Drift and fill type open stope subsequent backfilling mining method

A filling mining and empty field technology, applied in the direction of filling, ground mining, mining equipment, etc., can solve the problems of low mining intensity and labor productivity, low mining efficiency and filling efficiency, high mining and filling costs, and reduce mining and filling costs. Effects of filling cost, reduction of mining process, simple installation and dismantling process

Inactive Publication Date: 2016-03-02
MAGANG (GROUP) HOLDING CO LTD
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Problems solved by technology

The main advantages of the above filling mining method are safe mining, high ore recovery rate, and low dilution rate, but the mining intensity and labor productivity of this mining method are low, and the requirements for filling and roofing are relatively high.
This method has low mining efficiency and filling efficiency, and the mining volume of each mining route is small, and filling pipelines must be erected and blocked, and there are many processes, and the cost of mining and filling is high

Method used

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  • Drift and fill type open stope subsequent backfilling mining method
  • Drift and fill type open stope subsequent backfilling mining method

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Embodiment Construction

[0018] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:

[0019] as attached figure 1 , attached figure 2 As shown, the present invention is a method of mining with subsequent filling of an approach-type empty space. When mining in a mining area, the method of mining with subsequent filling of an approach-type empty space comprises the following steps:

[0020] 1) The mining area is set as a multi-layer mining layer 1, and multiple mining roadways 2 are set for each layer of mining layer;

[0021] 2) When mining is carried out in each mining roadway 2, after the mining is completed in a part of the mining area in the mining roadway 2, the part of the mining area that has b...

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Abstract

The invention provides a drift and fill type open stope subsequent backfilling mining method. The mining method comprises the following steps that 1, a mining area is arranged to be of multiple mining layers (1), and each mining layer is provided with multiple mining roadways (2); 2, after mining is finished in one part of the mining area inside each mining roadway (2), filling is carried out on the part of the mining area, then mining is finished in the other part of the mining area inside the corresponding mining roadway (2), and then filling is carried out; 3, before mining is finished in one part of the mining area of each mining roadway (2), top plates (5) are arranged on the top (3) and the side face (4) of the corresponding mining roadway (2). By the adoption of the mining method, the ore body inside each mining roadway can be supported and fixed, the mining roof-contact arrangement difficulty is lowered, mining can be carried out in each mining roadway conveniently, the mining efficiency is improved, and the mining safety is improved.

Description

technical field [0001] The invention belongs to the technical field of mining methods, and more specifically relates to an approach-type empty field and subsequent filling mining method. Background technique [0002] Under the condition of good ore rock stability, the open field and then filling mining method has a large exposed area of ​​the open field and does not need support. The main features of this method are: the ore body is alternately divided into ore chambers and pillars, and the open field method is used first. Back mining ore pillars, after the entire ore block is mined, cement and fill it at one time to form an artificial ore pillar. After the cemented body reaches the curing time, under the protection of the artificial ore pillar, use the same method to return to the mining house. After the mining of the mine house is completed, One time non-cemented filling. This mining method has high requirements on the stability of the ore rock. Under the condition of po...

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 陈宪龙
Owner MAGANG (GROUP) HOLDING CO LTD
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