Middle-waisted bidirectional filling and mining method under canopy guard in thick and great metal mine in sea bed

Abstract

The invention discloses a middle-waisted bidirectional filling and mining method under canopy guard in a thick and great metal mine in sea bed, which is characterized in that a safety isolating layer is preserved between an ore body and the sea bed; the ore body is divided into an upper part and a lower part at the middle waist in the altitude direction; the altitude from the middle waist position to the sea bed sea mud is 100-150m; stoping is carried out from the middle waist position of the ore body, wherein the upper part adopts upstroke mining and the lower part adopts downstroke mining; a rock trackless quasi-upward slicing cemented method with a regular post pillar is adopted in the upstroke mining method; a rock trackless quasi-ordinary slicing cemented method is adopted in the downstroke mining; the gob in the stope is filled with filling materials. The invention is characterized by having high safety of mining, little loss of resources, high degree of mechanism, low labor intensity, great production capacity, short stoping time, low mining settlement and the like.

Description

technical field [0001] The invention belongs to the technical field of mining, and relates to a mid-waist two-way filling mining method under the roof protection of seabed thick and large metal mines. This method is mainly suitable for the mining of thick and large metal deposits that are close to the sea, with large production capacity and high efficiency, and is also suitable for the mining of thick and large metal deposits under water bodies or rivers and lakes. technical background [0002] Submarine (sea-based) metal resources are the successor of terrestrial metal resources. With the exhaustion of land metal resources, a large number of seabed resources are facing development. Among all sea-based mineral resources, the mining of thick metal deposits is the most difficult. Thick and large ore bodies have large reserves and long extensions. Personnel and equipment stay and operate at the same vertical position on the seabed for a long time, resulting in a large goaf. A...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the special environment of mining under the seabed (water body), a kind of thick and large metal ore under the bottom of the seabed is proposed. Low efficiency, serious resource loss and waste, low production efficiency, long recovery time; low degree of mechanization, high labor intensity, etc.

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