Seepage drainage system of tailing dam

Abstract

The invention discloses a seepage drainage system of a tailing dam. The seepage drainage system comprises two layers of geomats and a vacuum seepage drainage pipe, wherein the two layers of geomats are stacked up and down, a layer of geotechnical fabric wraps each layer of geomat, the vacuum seepage drainage pipe is laid between the two layers of geomats, a plurality of drain holes are formed in the vacuum seepage drainage pipe, the vacuum seepage drainage pipe is connected with a vacuum pump, an upper coarse tailing layer is laid on the geotechnical fabric wrapping the geomat at the upper layer of the two layers of geomats, and a lower coarse tailing layer is laid on the geotechnical fabric wrapping the geomat at the lower layer of the two layers of geomats. The vacuum seepage drainage pipe is sandwiched between the geomats, and the coarse tailing layers are laid outside the geotechnical fabric, and thus, physical clogging of fine particles in tailings on seepage drainage facility andcalcification chemical clogging around the seepage drainage pipe can be prevented; and vacuum sucked negative pressure is combined with positive pressure to perform seepage drainage, the seepage drainage influence radius can be expanded, the hydraulic gradient of the seepage drainage path is improved, seepage drainage of fine particle tailings is accelerated, the seepage drainage efficiency is improved, and the safety and the stability of the dam are promoted.

Description

technical field [0001] The invention relates to the field of tailings treatment, in particular to a tailings dam seepage drainage system. Background technique [0002] Mining mines for a certain period of time, more and more fine-grained tailings will enter the tailings pond, and they are widely found in copper mines, gold mines, lead-zinc mines, alumina mines, phosphate mines and other mines. The problem of water seepage and drainage of the dam body with fine tailings is one of the difficulties encountered in tailings treatment technology. Tailings dams with fine tailings or ultra-fine tailings are often infiltrated due to the difficulty of water seepage and discharge. High, affecting the safety and stability of the dam body, this is a difficult problem faced by many mining companies. [0003] In order to discharge the seepage water in the fine-grained tailings dam, a variety of technologies are currently introduced into the tailings dam precipitation. These technologies a...

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Problems solved by technology

[0005] Based on the problems existing in the prior art, the purpose of the present invention is to provide a tailings dam seepage drainage system, which can solve the existing seepage drainage scheme for treating the high infiltration line of the dam body, and is inconvenient for construction on the soft beach surface. and consolidated drainage surface, resulting in limited seepage drainage effect, unable to solve the problem of ensuring the safety of the dam body through seepage drainage

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