Upward mining preparation and downward drift stoping with backfilling method

Abstract

The invention provides an upward mining preparation and downward drift stoping with backfilling method. The method comprises the following steps that 1, a stope is divided into a plurality of subsection stopes, and each subsection stope is divided into a plurality of layered stopes; 2, a filling return air pedestrian courtyard is arranged in the stope; 3, mining preparation engineering is carried out on the subsection stopes which are arrived in turn; 4, stoping engineering is carried out on the subsection stopes involved in the step 3; and 5, the step 3 and the step 4 are repeated, the stope preparation engineering of all the subsection stopes is completed in sequence from bottom to top, and stoping work of all the layered stopes of the corresponding subsection stopes from top to bottom is completed. The invention relates to the upward mining preparation and downward drift stoping with backfilling method, mineral resources can be recycled to the maximum extent, the loss dilution rate is reduced, the mining preparation work amount is effectively reduced, the mine engineering investment is reduced, the mine profit is improved, meanwhile, roof caving can be effectively controlled, ground pressure can be effectively controlled, and underground safety production operation is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of mining, in particular to a mining method of upward mining and downward filling, wherein upward mining and downward filling mining refers to the bottom-up construction of the mining project, and each segment mining Several stratified stopes in the field are mined from top to bottom. Background technique [0002] With the extension of the mining depth of each mine, the ore bodies controlled by the upper and lower middle sections of the deep mines are extremely broken to varying degrees. The exposed ore body has no mining value or the upper middle section of the roadway does not connect two wells due to the ore body occurrence conditions, and poor ventilation conditions make it difficult to mine the ore body. Based on this situation, the common upward horizontal (layered) approach filling mining method and downward mining quasi-downward approach filling mining method are no longer suitable for produ...

AI Technical Summary

Problems solved by technology

[0002] With the extension of the mining depth of each mine, the ore bodies controlled by the upper and lower middle sections of the deep mines are extremely broken to varying degrees. The exposed ore body has no mining value or the upper middle section of the roadway does not connect two wells due to the ore body occurrence conditions, and poor ventilation conditions make it difficult to mine the ore body

Based on this situation, the ordinary upward horizontal (layered) approach filling mining method and downward mining standard downward approach filling mining method are no longer suitable for production needs

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