High-efficiency filling mining method for controlling rock mass movement

Abstract

The invention relates to a high-efficiency filling mining method for controlling rock mass movement, and belongs to the technical field of mining. According to the technical scheme, the method comprises the following steps of: dividing an ore body into levels for mining, and mining along the levels from bottom to top; dividing panels along the strike of the ore body, stoping each panel of the ore body through two steps, namely stoping charmers and stoping ore pillars, wherein cemented fill after stage open-stope is adopted in the process of stoping the charmers, and non-cemented fill is adopted in the process of stoping the ore pillars; arranging strip pillars among the panels, wherein panel intervening pillars are pillars arranged at unequal spacing; and optimizing and obtaining the sizes of the panel intervening pillars, the ore pillars and the strip pillars through setting up an optimization mode. The high-efficiency filling mining method has the advantages that the stability of stope roof is improved, and the safety of mining is ensured; sizes of the panel intervening pillars and the panel pointed pillars are optimized, the strength of a filling body of the roof is improved, and ore resources are recovered to the maximum extent; bottom-to-top level stoping sequence is adopted, the influence of underground mining on a quaternary aquifer is avoided, single-step stoping span is determined by adopting rock classification and an empirical formula, stoping span meeting stable ore rock conditions is enlarged, and stoping production capacity is improved.

Description

technical field [0001] The invention relates to a high-efficiency filling mining method for controlling rock movement, and belongs to the technical field of mining. Background technique [0002] At present, people generally adopt the mining method of stage and subsequent filling for mining. This method divides the entire ore body into a middle section and mines section by section from top to bottom. In the middle section, the panels are divided along the ore body trend, and each panel is divided into mine rooms and pillars of equal size, which are mined in two steps at intervals. One step back to the mining room, using stage emptying and then cementing filling. Then go back to the mining pillar and use non-cemented backfill. The main problems in the background technology are: the span of the stope cannot adapt to the conditions of ore rocks in different stable states; at the same time, due to the stress generated by the roof of the stope, the surrounding rock of the stope ...

AI Technical Summary

Problems solved by technology

The main problems in the background technology are: the span of the stope cannot adapt to the conditions of ore rocks in different stable states; at the same time, due to the stress generated by the roof of the stope, the surrounding rock of the stope is in an unfavorable stress state, and prone to chipping or collapse; Roof fall not only brings serious safety hazards to the stope production, but also destroys the roof aquifer and induces water inrush disasters in the stope

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