Heightened and expanded stacking structure of ultra-fine tailings reservoir with one-time construction of dam by midline method

Abstract

The invention discloses an ultra-fine tailings dam heightening and capacity expansion heaping structure adopting the center line method for one-time construction of the dam. The dam body (2), the second-level heightened dam body (3), the third-level heightened dam body (4) ... the n-level heightened dam body is composed of a combination, and a row of dam bodies are constructed in the dam body on the top floor of each level-heightened dam body In this level of medium-coarse sand seepage blind ditch (9) parallel to each other and perpendicular to the axis of the dam body, drainage connecting pipes (7) and groundwater collection pipes (11) are laid. In this level, coarse sand seepage blind ditch (9) Seepage drainage flower pipes (8) are buried in the center, and a layer of high-strength corrosion-resistant geogrid (6) is fully paved at a height of 0.5m to 1.0m at each vertical interval. The method of the invention accelerates the consolidation of fine-grained tailings, improves and improves the mechanical strength index of fine-grained tailings, significantly increases the storage capacity of tailings storage, prolongs the service life of production, and also solves the problem of partial dump site capacity Insufficiency and stockpiling of mining waste rock.

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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