Novel open-pit mining method suitable for steep slope topography

Abstract

The invention discloses a new open-pit mining method suitable for steep slope terrain. The steep slope terrain is divided into 2 to 4 steps, the stripping operation surface is arranged along the strike, and a vertical strip L is divided every 14 to 16m in the vertical strike direction. , the step height H is not greater than 1.5 times the maximum excavation height of the hydraulic excavator (10), and the width of the bottom loading platform (11) is greater than 18m, so as to meet the operation requirements of the mine transport vehicle (12), implement single-step operation, blasting operation Finally, the hydraulic excavator (10) is used for mining from top to bottom, from outside to inside, and gradually advances to the final side. The ore is unloaded to the bottom by the hydraulic excavator (10) from top to bottom, from inside to outside The loading platform (11) is transported out through the mining transport vehicle (12). The invention has the advantages of simple process, easy-to-obtain equipment, safety and feasibility, and effectively solves the problems of large steep slope terrain, impossibility to build transportation roads, and difficult construction when conventional step mining is adopted.

Description

technical field [0001] The invention belongs to the open-pit mining technology, and in particular relates to a method for open-pit mining on steep slopes, which can be used for open-pit mining on various steep slopes, and is particularly suitable for open-pit mining on high and steep slopes with slopes ranging from 50° to 65°. Background technique [0002] Open-pit mining refers to the process of stripping rocks and extracting ores using certain mining techniques and in a certain sequence of mining. Mineral occurrence conditions are different, and the mining process is different. The typical mining process is completed through the "drilling-loading-transportation" process, specifically perforation blasting, mining, transportation and soil discharge. The coordination and cooperation of these links is The key to completing your surface mining mission. In the traditional open-pit mining method, after the ore is blasted, the excavator shovels it, and the car directly transports...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an unconventional, safe and feasible new open-pit mining method suitable for steep slope terrain in view of the technical problems that it is impossible to build transportation roads and adopt conventional step mining in open-pit steep slope terrain

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