A reclamation method for open-pit mining safety platform and cleaning platform

Abstract

The invention belongs to the technical field of reclamation of open pit mining and particularly relates to a reclamation method of safety berms and cleaning berms formed after open pit mining. Bench mining from top to bottom is adopted for open pit mines and comprises steps as follows: (1) when first bench mining ends and second bench mining and stripping are started to be pushed, a reclamation foundation trench is dug on the final berm of the first bench; after completion, the reclamation foundation trench is covered with soil and afforestation is performed; (2) operation in the step (1) is repeated circularly, that is, after the (n-1)th bench mining ends and the nth bench mining and stripping are started to be pushed, a reclamation foundation trench is dug on the final berm of the (n-1)th bench, and n is a natural number larger than or equal to 3; after completion, the reclamation foundation trench is covered with soil and afforestation is performed. The method for reclamation duringmining has the advantages of being high in working efficiency, low in cost and easy to implement.

Description

technical field [0001] The invention belongs to the field of open-pit mining and reclamation, and in particular relates to a reclamation method for a safety platform for open-pit mining and a cleaning platform. Background technique [0002] Open-pit mines generally adopt the method of mining from top to bottom and divided into steps. Usually, after the mining is completed, several safety platforms and cleaning platforms will be formed; among them, the safety platforms and cleaning platforms are generally set one apart or two apart; the safety platform The width of the cleaning platform is generally 3-4m, the width of the cleaning platform is generally 6-8m, and the bedrock of each platform is exposed. [0003] For the land reclamation of the safety platform and cleaning platform, there are limited methods available. The traditional method is to build a retaining ridge on the outside of the safety platform and cleaning platform after the final step is formed, cover the inside...

AI Technical Summary

Problems solved by technology

[0003] For the land reclamation of the safety platform and cleaning platform, there are limited methods available. The traditional method is to build a retaining ridge on the outside of the safety platform and cleaning platform after the final step is formed, cover the inside of the retaining ridge, and carry out ecological restoration However, there are defects in the traditional method: first, after the steps are formed, the width of the safety platform and the cleaning platform is limited, so that the space for construction operations is limited; secondly, the bottom of the safety platform and the cleaning platform is generally a high and steep slope of 10-15m On the other hand, building retaining ridges on the outside of the safety platform and cleaning platform has the disadvantages of high risk factor and difficult construction; moreover, the equipment and materials used in the process of building retaining ridges are not common items in the mining process. Relevant equipment needs to be specially purchased or rented, which ultimately leads to high cost of reclamation, complicated process and difficult realization

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