Assembly type tailing dam and construction method thereof

Abstract

The invention relates to an assembly type tailing dam and a construction method thereof, and belongs to the technical field of mine engineering. The tailing dam mainly comprises a plain concrete cushion layer, a water-permeable cushion layer, building block concrete, a drainage gallery, a dam foundation drainage hole, a dam top concrete protection layer, a flood control wall, an orifice drainage plate and the like. A dam body of the tailing dam is mainly built by using the building block concrete in a certain sequence, the cross section of the dam body is of a composite ladder shape, and building blocks are bonded and connected through cement paste. In order to improve the permeability of tailing sand on the upstream side of the dam body, horizontal drainage plates are laid on the sand facing surface of the building block dam body, water in the tailing sand can permeate into a hoisting hole through the drainage plates, and then the water can be gathered into the drainage gallery and discharged. According to the tailing dam, waste stone produced by mining can be fully utilized to cast the concrete building blocks, so that the building block dam body is high in safety performance, the building blocks are convenient for industrial production, the quality is easy to control, the building efficiency is high, the tailing dam is little influenced by climate and can be built layer by layer and constructed by stages, and the tailing dam is economical and environmentally friendly.

Description

technical field [0001] The invention relates to a prefabricated tailings dam building and a construction method thereof, belonging to the technical field of mine engineering. Background technique [0002] As one of the three major mine control projects, the safety performance of tailings reservoir not only affects the economic benefits of mining enterprises, but also affects the safety of life and property of downstream residents in the reservoir area and the stability of the surrounding ecological environment. As the main project of the tailings pond, the tailings dam is a huge source of danger with high potential energy debris flow, and there is a danger of dam failure. Therefore, the stability of the tailings dam is one of the key factors to ensure the normal production of mining enterprises. [0003] Due to the particularity of tailings dams, the deterioration of operating conditions will lead to the transformation of normal dams into dangerous, dangerous and sick dams....

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is aimed at the tailings dam constructed by upstream damming, which has the disadvantages of complex dam structure, fine-grained interlayer, poor permeability, high infiltration line, etc., and the dam body is prone to accidents; A large amount of materials is used, and the initial construction investment is too high. A new type of tailings dam—prefabricated tailings dam is proposed.

This type of dam can make full use of the waste rock produced by mining to pour concrete prefabricated blocks. The concrete blocks have the advantages of reliable quality and high construction efficiency, which can greatly improve the safety performance of the dam body, prevent the dam body from collapsing, and fundamentally solve the problem of tailings. The dam is prone to problems of insufficient stability of the dam body and easy instability of the dam slope, ensuring the safety of the tailings dam and solving the problem of large one-time investment, which is economical and environmentally friendly

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