Mining method of segmental collapse and bottom structure followed by continuous filling

Abstract

The invention discloses a following-forming continuous-filling mining method for a segmented ore-caving bottom structure. The method comprises that an ore vein is segmented for stoping, stoping is continuously propelled from one end to another end of the ore vein, the segmented bottom structure is formed following subsequent segmented ore-breaking operation; the segmented bottom structure comprises a segmented rock-drilling space, a segmented ore-drawing space and an ore-receiving project, formation of the segmented rock-drilling space and the subsequent segmented ore-breaking operation are finished through once explosion by a medium-depth hole; the segmented ore-drawing space is formed through lateral explosion, and generated waste stone is directly thrown and fills a subsequent segmented gob area, and the ore-receiving project is constructed after rock drilling is finished by the medium-depth hole in the current segment; and after the whole segmented stoping is finished, tailings filling or tailings cementation filling is performed, and all segments are cycled as the above until all segmented stoping in a medium section is finished. The method has the advantages of being safe, efficient, high in production capacity, low in labor intensity, low in ore dilution loss rate and the like.

Description

technical field [0001] The invention relates to a mining method, in particular to a continuous filling mining method formed by segmental collapse ore bottom structure. Mining of mines. Background technique [0002] Inclined to sharply inclined thin veins are often mined by the ore retention method, upward layered filling mining method or segmental filling mining method without bottom structure. When using the ore retention method for mining, the exposure time of the two sides and the roof of the unstable stope is longer, the exposed area is larger, the safety of the mining operation is poor, and it is easy to cause secondary dilution of the ore, and the production efficiency is low and the labor intensity is high. If the layered filling mining method is used for mining, there will be many operating cycles, complex mining technology, low production efficiency, high labor intensity, and high mining costs; while for the bottomless structure segmented filling mining method, low...

AI Technical Summary

Problems solved by technology

When using the ore retention method for mining, the exposure time of the two sides and the roof of the unstable stope is longer, the exposed area is larger, the safety of the mining operation is poor, and it is easy to cause secondary dilution of the ore, and the production efficiency is low and the labor intensity is high.

If the layered filling mining method is used for mining, there are many operating cycles, complex mining technology, low production efficiency, high labor intensity, and high mining costs; while for the bottomless structure segmented filling mining method, low segmental methods are usually used For mining, not only the mining efficiency is low, but also the amount of mining and cutting works is large. If the mining is carried out in high sections, the safety of the mining operation cannot be guaranteed.

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