Continuous mining method in vertical direction and application thereof to full ore body continuous mining

Abstract

The invention provides a continuous mining method in a vertical direction and application thereof to full ore body continuous mining. The continuous mining method comprises the following steps: dividing an ore body into a plurality of middle sections, alternately dividing the middle sections into rooms and pillars, and numbering the rooms and the pillars; taking three middle sections as an example, sequentially mining upper sections and middle sections of the odd-numbered stopes, filling the upper sections and the middle sections of the odd-numbered stopes with cementing materials, and filling the bottom part with high-strength cementing materials with certain thickness; sequentially mining lower sections and middle sections of the even-numbered stopes, filling the top and bottom of the lower sections as well as the bottom of the middle sections of the even-numbered stopes with high-strength cementing materials with certain thickness, filling the rest part of the lower sections with cementing materials, and filling the rest part of the middle sections with non-cementing materials; mining the upper sections in the even-numbered areas, and then filling the sections with non-cementing materials; and mining the lower sections of the odd-numbered stopes, then filling the bottom of the lower sections of the odd-numbered stopes with high-strength cementing materials, and finally filling the rest part of the lower sections with cementing materials. In the invention, the triangular pillars and the high-strength cemented filling bodies of a bottom structure form an isolation layer, and the isolation layer replaces virgin rock level pillars. By utilizing the continuous mining method, top-down continuous mining of the ore body is realized.

Description

technical field [0001] The invention relates to a vertical continuous mining method and its application in the vertical mining of the whole ore body, belonging to the technical field of mining. Background technique [0002] Since the 1980s, the international mining industry has regarded the realization of continuous and efficient mining as the most effective way to develop mine production and improve economic benefits. The basic definition of continuous mining process in underground mines is: in the mining process of an ore body, stage or ore block, the three major processes of ore dropping, ore extraction and ore transportation have relatively independent operating conditions, and each process is coordinated with each other. A mechanized mining operation system composed of parallel and continuous operations in different spaces. [0003] In the traditional top-down mining method of ore deposits, horizontal ore pillars need to be kept between adjacent stages, and the horizon...

AI Technical Summary

Problems solved by technology

[0011] The present invention aims to solve the problems of low production efficiency, poor production safety, and discontinuous mining in the traditional top-down mining method of ore deposits, which are difficult to recover from horizontal ore pillars, bear high pressure, and are easily damaged by geological activities. The problem that mining affects the balance of mine production provides a continuous mining method in the vertical direction and its application in the continuous mining of the whole ore body

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