Multilayer ore body three dimension cooperation mining method

Abstract

The invention relates to a multilayer ore body three dimension cooperation mining method. The invention relates to a slightly inclined multilayer thin-medium ore body three dimension cooperation mining method. The method comprises the following steps: 1) recombining multilayer ore body to one or several ore groups, communicating a main transport tunnel at the lower part of the ore group with the peripheral part of the ore body through a winze system, employing uniform accurate mining by the ore group, backstopping by layering and subsequently filling; 2) dividing panels along the tendency by each layer of ore body, dividing mining areas along the direction, performing aligned arrangement of the panels columns of upper layer ore body and lower layer ore body and the mining areas column on three dimensions; respectively arranging a main route and a branch route between the panels and the mining areas, wherein a multilayer ore body backstopping sequence is upwardly backstopping in order, and homoeomerous ore body is upward exploitation, exploiting from the bottom panels to the upper mining areas in order, and then using upper developing / accurate mining waste stone to fill a bottom goaf; and 3) employing an organic combination mode of drilling rock by a rock drilling chassis, ore removal by a scraper, conveying by a well lorry and transporting by an electric locomotive. According to the invention, the mutual influence and mutual restriction during the multilayer ore body backstopping process can be furthest reduced, the work interference between the upper layer and the lower layer is less, the loss and depreciation can be effectively controlled, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of underground mining of metal mines, and relates to a three-dimensional space cooperative mining method of multi-layer ore bodies, which is particularly suitable for mining of gently inclined thin-medium-thick multi-layer ore bodies. Background technique [0002] The mining of gently-inclined thin-medium-thick ore bodies has always been a difficult problem in the mining industry, and the mining of multi-layered gently-inclined thin-medium-thick ore bodies is the most difficult. The traditional mining methods for this type of ore body mainly include two forms of separate mining and joint mining, but the effect has not been very satisfactory. It cannot achieve intensive and efficient production space, and cannot achieve the goal of safe, efficient and low-cost mining. The production practice of many domestic mines shows that these methods have problems to varying degrees. The outstanding problem of the former is that ...

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Problems solved by technology

The outstanding problem of the former is that there is a lot of interference between the upper and lower layers of the mining operation, and most of them are mined in the downward mining mode, the ground pressure management is difficult, the mining and cutting project is large, and the loss is high; the main problem of the joint mining is to control the stope. The roof is difficult, the safety is poor, the ore depletion increases, and the economic benefit is poor

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