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Composite anti-seepage structure for red mud tailing ponds
The invention discloses a composite anti-seepage structure for red mud tailing ponds, which comprises an anti-seepage layer, a flexible protective layer and a rigid protective layer, wherein the anti-seepage layer is arranged on a side slope, the flexible protective layer is arranged on the anti-seepage layer, the rigid protective layer is arranged under the anti-seepage layer, an isolating layer is also arranged between the rigid protective layer and the anti-seepage layer, wheat straws or rice straws and clay are mixed to form the isolating layer, and the materials of the anti-seepage layer include polycarbonate, polytetrafluoroethylene, polybutylene terephthalate, fly ash, hammer-milled glass fibers, graft copolymerization acrylic acid derivative, antioxidant, ultraviolet light absorber and anti-aging agent. The physical and chemical properties of the adopted anti-seepage materials are stable, the low-temperature properties and the ageing resistance are excellent, the right-angled tear resistance is high, the reliability of joints is high, the strength of the whole anti-seepage layer structure is high, and the composite anti-seepage structure has extremely high tensile strength and elongation in order to adapt to local anti-piercing strength on sand and stones in a large-area tailing stack, thus ensuring that wastewater from red mud cannot seep into the ground during the usage of the stack.
Composite anti-seepage structure for red mud tailing ponds
The invention discloses a composite anti-seepage structure for red mud tailing ponds, which comprises an anti-seepage layer, a flexible protective layer and a rigid protective layer, wherein the anti-seepage layer is arranged on a side slope, the flexible protective layer is arranged on the anti-seepage layer, the rigid protective layer is arranged under the anti-seepage layer, an isolating layer is also arranged between the rigid protective layer and the anti-seepage layer, wheat straws or rice straws and clay are mixed to form the isolating layer, and the materials of the anti-seepage layer include polycarbonate, polytetrafluoroethylene, polybutylene terephthalate, fly ash, hammer-milled glass fibers, graft copolymerization acrylic acid derivative, antioxidant, ultraviolet light absorber and anti-aging agent. The physical and chemical properties of the adopted anti-seepage materials are stable, the low-temperature properties and the ageing resistance are excellent, the right-angled tear resistance is high, the reliability of joints is high, the strength of the whole anti-seepage layer structure is high, and the composite anti-seepage structure has extremely high tensile strength and elongation in order to adapt to local anti-piercing strength on sand and stones in a large-area tailing stack, thus ensuring that wastewater from red mud cannot seep into the ground during the usage of the stack.
Composite anti-seepage structure for red mud tailing ponds
WU CHUANSHENG (author) / XIA YUCHAO (author)
2015-07-29
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
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Gründungen
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