Mining method of slanting uphill combined with downward approach cemented filling

Abstract

The invention discloses a method for cementing and filling mining with an inclined uphill combined with a downward approach, comprising the following steps: a. Stope design, arranging stopes along the trend of an ore body, determining the width of the approach path according to the thickness of the ore body, and determining the degree of fragmentation of the ore body by determining the width of the ore body. Determine the height of the approach; b. Precise cutting works; c. Control the roof. After the construction is inclined up the hill, rock drilling tunnels along the veins, and after the approach, support with anchor nets; in areas with severe fractures, steel arches are used for auxiliary support , among which the exposed area of ​​the inclined uphill and the opening of the entrance is relatively large, and the steel arch frame is used for intensive support; d. The ore is recovered, and after blasting and ventilation, the slag scraper, electric tricycle and electric rake are used to jointly extract the ore; e. Mechanical equipment transfer layer; f, cement filling. The invention has the characteristics of simple mechanical layer transfer, high safety, high ore extraction efficiency and simple construction technology, and is especially suitable for the mining of steeply inclined broken 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...

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 downward approach, so as to solve the difficulty in mining and layer transfer of mechanical equipment in the mining of sharply inclined broken thin ore bodies. The problem of high support costs

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