Mechanized mining and waste rock filling method for inclined thin vein

Abstract

The invention discloses a mechanized mining and waste rock filling method for an inclined thin vein. The method comprises the following steps of: stoping an ore body layer by layer from bottom to top by adopting a stope preparation mode of slope ramp development outside the vein, sectional haulage roadway connection and ore removal of a panel draw shaft; finishing undercutting drift stoping by adopting a single-head tunneling mode; performing goaf waste rock filling by brushing and expanding footwall surrounding rock and throwing blasting; removing slag by utilizing a carry-scraper, and erecting an isolation baffle between a brushing and expanding area and a goaf; pressing the mined ore body downwards by adopting a drill jumbo and utilizing the goaf formed by the brushing and expanding area as a free surface, so that the stoping efficiency is improved; and removing the isolation baffle, performing footwall brushing and expanding again, and repeating the steps until the whole sectional stoping operation is finished. The method disclosed by the invention has the advantages of high mechanization degree, simple filling process, low comprehensive cost, high stope production capacity, high safety and the like.

Description

technical field [0001] The invention belongs to the technical field of mining engineering, and particularly relates to a mechanized mining and waste rock filling method for inclined thin ore veins. Background technique [0002] For sloping thin veins, the most commonly used mining method at present is the upward horizontal approach backfill mining method, that is, the single-headed approach is used to return to the ore body from bottom to top, and one layer is filled with one layer until the whole stage of the ore body. Extraction is complete. Due to the thin veins and the limited size of the working surface, the mining operations of such ore bodies still mainly use outdated mining equipment such as hand-held rock drills and electric rakes. There are many problems such as high production cost and high safety risk. [0003] At the same time, the upward horizontal approach filling mining method must fill the goaf after the end of each layer of mining, eliminate the safety ha...

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Problems solved by technology

[0005] In order to solve the technical problems of the existing oblique thin vein mining technology and equipment level behind, high filling cost, low production efficiency, and poor mining safety, the present invention provides a mechanized mining and waste rock filling method for inclined thin veins, which has mechanized High degree, simple filling process, low comprehensive cost, large stope production capacity and good safety

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