Superfine particle tailing reservoir heightening and capacity expanding stacking-discharging structure capable of achieving one-time dam building by adopting center line method

Abstract

The invention discloses a superfine particle tailing reservoir heightening and capacity expanding stacking-discharging structure capable of achieving one-time dam building by adopting a center line method. The structure is formed by combining an original tailing blocking dam (1), a dam abutment flood intercepting trench (12), a first-stage heightening dam body (2), a second-stage heightening dam body (3), a third-stage heightening dam body (4),..., and an nth-stage heightening dam body; a row of medium-coarse tailing drainage blind drains (9) which are parallel to one another and perpendicularto the axis of the corresponding dam body are constructed in the portion on the top layer of each stage of heightening dam body; draining communication pipes (7) and underground water collecting pipes (11) are laid; drainage floral tubes (8) are buried in the medium-coarse sand drainage blind drains (9); and layers of high-strength anti-corrosion geogrid (6) are laid every 0.5-1.0 m of verticalinterval. According to the invention, solidification of fine particle tailings is accelerated, the mechanical strength index of the fine particle tailings is improved and increased, thus, the capacityof a tailing reservoir is remarkably increased, the production service life is prolonged, and meanwhile, the problems that the capacity of parts of waste dumps are not enough, and mining waste rock is stacked are solved.

Description

technical field [0001] The invention belongs to the technical field of tailings pond engineering, and in particular relates to the heightening and expansion technology of tailings ponds for one-time construction of dams, and is particularly suitable for one-time construction of dams and superfine tailings with a content of -200 mesh (-0.074mm) exceeding 82%. Heightening and expansion of mine warehouse. Background technique [0002] The tailings pond is a place for storing metal or non-metallic mines for ore sorting and discharging tailings or other industrial waste residues. It is an important part of mine production facilities. At the same time, the tailings pond is also a man-made debris flow with high potential energy Hazardous source, the safety and stability of the tailings dam is related to the life and property safety of the downstream people, improper management and use can easily cause serious accidents. [0003] With the rapid development of my country's economy, ...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to heighten the height of the tailings retaining dam of the ultra-fine tailings reservoir of the existing one-time dam and increase the storage capacity. Slow, high safety risk, high cost and other technical problems, and provide a superfine tailings reservoir heightened and expanded stacking structure using the center line method to build a dam at one time

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