Inclined large and thick ore body cooperative mining method

Abstract

The invention discloses an inclined large and thick ore body cooperative mining method. The inclined large and thick ore body cooperative mining method comprises the following steps of dividing an orebody into panels in a trend direction, wherein panel studdings are reserved among panels, and mining the panels first and then mining the panel studdings; dividing the panels into first step stopes and second step stopes arranged in the trend direction for recovery in two steps, adopting large diameter deep hole blasting ore caving in the first step stopes and the second step stopes, shoveling caved ores by a carry-scraper through a sectional transportation roadway, a transportation cross gateway and an ore removal roadway, and carrying out subsequent filling in a goaf; dividing the panel studdings into odd number panel studdings and even number panel studdings, mining the even number panel studdings first, then mining the odd number panel studdings, recovering all the even number panel studdings, recovering the odd number panel studdings by taking one every the other one, and carrying out substoping from top to bottom in the panel studdings by using medium-length holes. The inclinedlarge and thick ore body cooperative mining method has the advantages of being high in production capacity of stope, high in efficiency, high in ore recovery rate, small in accurate mining cutting work amount, high in synergic utilization ratio and the like.

Description

technical field [0001] The invention belongs to the field of underground mining, in particular to a collaborative mining method for inclined thick and large ore bodies. Background technique [0002] The large-diameter deep hole mining method is an efficient and economical mining method that applies the open-pit deep hole bench blasting process to underground mining. Method). The VCR method is an efficient, safe, and economical stage open-field mining method characterized by large-diameter vertical deep-hole spherical powder bag drop as the main process. Generally, it is mined in two steps, and subsequent filling is used to control the ground pressure. This method comprehensively applies technologies and processes such as deep hole rock drilling equipment, C.W. Livingston spherical charge blasting funnel theory and large trackless mining equipment. The technological feature is to excavate a rock drilling chamber (or roadway) for rock drilling operations horizontally on the ...

AI Technical Summary

Problems solved by technology

[0003] At present, the large-diameter deep-hole mining method is mainly used in the ore mining of steeply inclined thick and large ore bodies and gently inclined extremely thick ore bodies, and is rarely used in inclined thick and large ore bodies. Due to the constraints of mining, a large number of mining projects need to be arranged, and it is difficult to realize the economical and reasonable arrangement of mining projects; at the same time, the recovery of ore pillars is difficult, and it is difficult to achieve efficient and coordinated recovery of ore pillars

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