A tailings mining method for tailings accumulation dam

Abstract

The invention discloses a stoping technology for a dam slope tailing of a tailing dam. The stoping technology comprises the following steps: assigning 1-2 rows of gravel piles (4) in the front of each stoping step; assigning a row of unwatering, pumping and reinforcing facilities comprising unwatering pump drainage water wells (3) and the gravel piles (4) at intervals; adopting submersible pumps to conduct groundwater pump drainage in the unwatering pump drainage water wells (3); excavating a tailing in the area on a first construction separated layer (8) of the tailing stoping in a dry type; conducting construction on slope surface protection measures (7) after the tailing stoping of the tailing pound tailing stacking dam slope; constructing tailing stacking dam side slope stepped drainage ditches (6); repeating the constructing steps, and excavating a tailing in the area on a second construction separated layer (9) of the tailing stoping of tailings stacking dam slope. The stoping technology solves the problem of safety and stability of the stacking dam side slope during tailing stoping of a valley type tailing stacking dam slope, reduces vast capital cost and land-use cost of new-building a tailing pond, realizes recovery of the most valuable tailings in the tailing pond, and improves mineral resource utilization ratio and economic benefits.

Description

technical field [0001] The invention relates to tailings recovery technology of a tailings pond, and is particularly suitable for mining tailings of a valley-type tailings pond with tailings accumulated in dams and slopes. Background technique [0002] Mineral resources are non-renewable resources. With the rapid economic development, the demand for mineral products has increased significantly. Facing the serious shortage of mineral resources in the future, more and more people realize that the comprehensive utilization of tailings is of great significance to the economy, environmental protection and sustainable mineral resources. It is mainly manifested in: [0003] First of all, with the massive development and utilization of mineral resources, the ore is becoming increasingly depleted and the resources are becoming increasingly depleted. As a secondary resource, tailings have been valued by countries all over the world. Carrying out tailings re-election and recovering ...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to address the above-mentioned problems in the prior art, and provide a tailings accumulation dam slope tailings recovery method to solve the problem of safety and stability of the accumulation dam slope in the valley-type tailings accumulation dam slope tailings recovery , save the huge amount of infrastructure and land acquisition fees for the new tailings pond, and realize the recovery and utilization of the most valuable part of the tailings in the tailings pond

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