Method for expanding capacity by exploiting underground mine by areas from bottom to top

Abstract

The invention provides a method for expanding capacity by exploiting an underground mine by areas from bottom to top. The method comprises the steps that S10, the construction scale of the mine is estimated according to the ore reserve capable of being exploited and the economic service life of a deposit; S11, a deep mining area is arranged below an existing mining project of the deposit, the deep mining area is divided into middle mining sections in the depth direction, and the production capacity of all the middle mining sections is verified; S12, each middle mining section is divided into mining blocks, and all the middle mining sections are sequentially exploited from bottom to top. The method has the advantages that the mining area is arranged deeply in the deposit, mining is conducted from bottom to top, a small influence is imposed on an existing production system above, and management is simple; a gob is continuously filled from bottom to top, and it is beneficial for compacting and stabilizing a filling body; barren rock exploited and cut in the upper mining area can easily fill up the lower gob; the mining area is additionally arranged at the deep position, and therefore the capacity of the mine can be greatly expanded; when trailing operation is adopted from bottom to top, the production capacity can be further expanded.

Description

technical field [0001] The invention relates to the field of underground mine mining, in particular to a method for expanding production capacity of underground mines from bottom to top. Background technique [0002] There are many ways to expand the production capacity of underground mines. For example, without increasing investment, through rational arrangement of production, the high efficiency of facilities and equipment can be improved to increase production capacity; production capacity. The existing methods of increasing production capacity are all carried out under the condition that the mining level and mining sequence are unchanged, the increase in production is small, the production management is difficult, and it is difficult to meet the needs of production and construction units. [0003] Therefore, relying on many years of experience and practice in related industries, the present inventor proposes a method for expanding production capacity of underground mine...

AI Technical Summary

Problems solved by technology

The existing methods of increasing production capacity are all carried out under the condition that the mining level and mining sequence are unchanged,

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