Underground structure arrangement mode adopting sublevel open-stope method and staged open-stope method in sequence for mining

Abstract

The invention discloses an underground structure arrangement mode adopting a segmented open-stope method and a staged open-stope method for mining in sequence, which comprises the following steps of: constructing a hanging wall along-vein roadway (10) on a hanging wall of an ore body, constructing a footwall along-vein roadway (1) on a footwall of the ore body, constructing a hanging wall transverse-vein roadway (11) on the hanging wall of the ore body, and constructing a along-vein roadway (2) on the footwall of the ore body. A ventilation pedestrian raise and a segmented drilling roadway (13) are constructed in the hanging wall ore body, a medium-length hole is constructed in the hanging wall ore body, and exploded ore is transported out of a stope through a segmented open-stope-method chamber ore removal access of the segmented open-stope-method chamber; and after stoping of the stope chambers by the staged open-stope method is completed, the stope chambers by the staged open-stope method located on the footwall ore body are mined, and the exploded ore is transported out of the stope through the ore removal access road (5) of the stope chambers by the staged open-stope method. The method has the advantages of being good in safety, easy to construct, high in resource recovery rate and the like, can effectively reduce the waste rock mixing rate and the ore dilution rate, and is particularly suitable for being popularized and applied to thick and large steeply inclined ore body underground mines with very broken surrounding rocks.

Description

technical field [0001] The invention belongs to the technical field of underground mine mining, and in particular relates to a mining method in which an underground mine adopts a combination of a segmented emptying method and a staged emptying method, and is particularly suitable for underground mines with thick, large and steeply inclined ore bodies with very broken surrounding rocks. Background technique [0002] The open-field mining method is widely used in underground mining. The open-field mining method is a method of dividing ore blocks into ore rooms and pillars for mining, including full-scale mining methods, room-and-pillar mining methods, ore-retaining mining methods, and segmented open fields. Method (segmented mine method), stage empty field method (stage mine method), etc. Among them, the segmented open field method is used for inclined thick and medium-thick ore bodies. It is to divide the ore block into segments along the inclined direction, and divide them i...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a safe, reliable, simple construction and high resource recovery rate for the outstanding problems of poor mining safety and serious waste of mineral resources in the case of thick, large and steeply inclined ore bodies with broken surrounding rocks in the prior art. Adopting the underground structure layout method of segmented open field method and stage open field method mining can significantly improve the mining status of underground mines with thick and steeply inclined ore bodies with very broken surrounding rocks

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