Cemented filling mining method for inclined uphill and downward drift

A technology of cemented filling and mining methods, applied in underground mining, filling, surface mining, etc., can solve the problems of difficult layer transfer, difficult mining of mechanical equipment, high support costs, etc., to increase the length of the stope and improve the efficiency of mining , The effect of high mining efficiency

Active Publication Date: 2021-01-08
CHINA MINMETALS CHANGSHA MINING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the deficiencies of the prior art, to provide a method of cementing and filling mining with an inclined uphill combined with a down

Method used

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  • Cemented filling mining method for inclined uphill and downward drift
  • Cemented filling mining method for inclined uphill and downward drift
  • Cemented filling mining method for inclined uphill and downward drift

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Embodiment Construction

[0060] From Figure 1 to Figure 3 It can be seen that this inclined uphill combined downward approach cemented filling mining method of the present invention comprises the following steps:

[0061] a. Stope design

[0062] The stope is arranged along the 8th direction of the ore body, and the length of the stope is 85-100m; the width of the approach is determined according to the thickness of the ore body, and the width of the approach is generally 2.0-2.5m; the height of the approach is determined by the degree of fragmentation of the ore body, and the height of the approach is generally 2~2.2m;

[0063] b. Accurate cutting project

[0064] b1. Divide the stope into middle sections along the vertical height of the ore vein, the height of the middle section is 40m, and the top pillar 1 with a height of 4-6m is reserved in each middle section, and no bottom pillar is left;

[0065] b2. The upper vein drilling roadway 2 is constructed in the vein at the top of the middle sect...

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Abstract

The invention discloses a cemented filling mining method for inclined uphill and downward drift. The cemented filling mining method comprises the following steps of: a, designing a stope, arranging the stope along the trend of an ore body, determining the drift width according to the thickness of the ore body, and determining the drift height according to the crushing degree of the ore body; b, performing accurate mining and cutting engineering; c, controlling a top plate, performing anchor net supporting after construction of inclined uphill, rock drilling roadways along veins and drift, andadopting steel arch frame auxiliary supporting in a region with a severe crushing condition, wherein the exposed area of the inclined uphill and the drift opening is large, and steel arch frame intensive supporting is adopted; d, performing stoping and ore removal, and performing combined ore removal by adopting a crawler loader, an electric tricycle and an electric rake after blasting ventilation; e, performing mechanical equipment layer transfer; and f, performing cemented filling. The cemented filling mining method disclosed by the invention has the characteristics of simple mechanical layer transfer, high safety, high ore removal efficiency and simple construction process, and is particularly suitable for mining of steep crushed thin ore bodies.

Description

technical field [0001] The invention relates to the field of backfill mining in an empty field, in particular to a mining method for cementing and filling with an inclined uphill combined with a downhill approach. Background technique [0002] When mining weak, broken, and poorly stable thin ore bodies, the downward filling mining method is generally adopted, and a raised shaft is adopted for personnel and equipment to go up and down. With the aging of personnel, the increase of labor costs and the development of related equipment and technology, mines urgently need to improve the mechanization of the entire mining process in order to ensure the intensity of mining and the efficiency of ore extraction. There are big problems in layer and transition. Suspension method, split-level method, etc. are usually used to improve the transfer of equipment and transition. However, the flexibility of the equipment is poor, and a large amount of equipment is required, which is time-consu...

Claims

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Application Information

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IPC IPC(8): E21C41/22E21F15/00F42D3/04
CPCE21C41/22E21F15/00F42D3/04
Inventor 刘东锐李向东李强李士超朱青凌张海云
Owner CHINA MINMETALS CHANGSHA MINING RES INST
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