Method for directly building tailing ponds without filling positions above goaf

Abstract

The invention discloses a method for directly building tailing ponds without filling positions above a goaf. Through the research on the goaf (2) and the rock mechanic experiments on a jamb (3), roof rocks (4) are regulated and cut into crossed irregular post bodies in blocks for carrying out stability analysis, the elastic plastic finite element analysis is carried out on the goaf (2) under the loading of the tailing ponds (5), the tailing ponds (5) are built under the condition without processing the goaf (2), and the tailing ponds (5) mainly comprise initial dams (6), tail sand piling dams (7) and water discharge systems (8). According to the invention, the tailing ponds are directly built above unfilled goaf, thus the potential safety hazard of directly building the goaf above the oversized goaf can be eliminated, the normal production of a large-scale deep well mine can be ensured, and the goaf processing cost, the tail sand piling and storage long-distance conveying cost and the operation cost can also be saved.

Description

technical field [0001] The invention relates to a method for building a tailings pond above the goaf, in particular to a method for directly building the tailings pond without filling the goaf. It is suitable for the research, analysis and application of the construction of tailings ponds above the gobs of various mines. Background technique [0002] Tailings pond refers to the place where dams are built to intercept valleys or enclosures to store metal and non-metal mines for ore sorting and then remove tailings. It is a necessary facility to maintain normal mine production and is the largest environmental protection project for mining companies. project. It can prevent tailings from being discharged randomly to rivers, rivers, lakes, seas, deserts and grasslands. [0003] At present, the types of tailings ponds include valley-type tailings ponds, mountain-side tailings ponds, flat-land tailings ponds, and river-cutting tailings ponds. The infrastructure investment of ta...

AI Technical Summary

Problems solved by technology

In recent years, the cost of building tailings ponds has been higher due to the difficulty of acquiring land and relocating farmers

In particular, limited by local terrain conditions and planning, it is difficult to acquire land outside the existing factory area to build tailings ponds, which makes mining companies have to consider building tailings ponds above the goaf

[0005] However, because the tailings pond is a dangerous source of man-made debris flow with high potential energy, once an accident occurs, it will cause huge disasters and losses to industrial and agricultural production and downstream people's life and property

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