Sectionally constructed seepage drainage pipe for tailings dam

Abstract

The invention discloses a sectionally constructed seepage drainage pipe for a tailings dam. The sectionally constructed seepage drainage pipe comprises an aqueduct (1) and a seepage drainage pipe (2) which are communicated with each other, wherein the seepage drainage pipe (2) is arranged at a distance of 1/3 to 1/2 from the top of the dam and consists of an inner pipe (3), seepage drainage holes (4), a geotextile (5) and a reserved interface (6), and the inner layer of the seepage drainage pipe (2) is the inner pipe (3); the seepage drainage holes (4) are uniformly arranged on the inner pipe (3), and the outer side of the inner pipe (3) is wrapped with the geotextile (5); and the reserved interface (6) arranged at the upper part of the inner pipe (3) is connected with a second-stage seepage drainage pipe. The good permeability and reliability of the seepage drainage pipe are ensured, the loss of accumulated fine particle soil can be prevented, and the seepage failure is avoided, thereby ensuring the stability of the dam.

Description

technical field [0001] The invention relates to a tailings dam seepage drainage device, in particular to a tailings dam seepage drainage pipe constructed in sections and a construction method thereof. Background technique [0002] With the elevation of the accumulation dam of the tailings dam, the water level of the dam will gradually rise, and the dam body and dam foundation of the tailings dam will inevitably form seepage water flow. Once the infiltration line is too high and escapes from the dam surface, seepage damage may occur, and even The tailings dam is unstable and damaged. Therefore, in order to effectively reduce the wetting surface of the dam body, certain drainage measures must be taken to reduce the wetting line, so as to prevent the tailings dam from being unstable or even breaking. [0003] At present, the measures commonly used in engineering to reduce the soaked surface mainly include setting geotextiles, drainage mattresses, seepage drainage walls, water...

AI Technical Summary

Problems solved by technology

[0003] At present, the measures commonly used in engineering to reduce the soaked surface mainly include setting geotextiles, drainage mattresses, drainage walls, water collection wells and aqueducts, etc., but these measures are added in the later period, and the drainage effect is not very significant

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