Drainage reinforcing method for ultra-fine tailings deposited beach

Abstract

The invention discloses a drainage reinforcing method for an ultra-fine tailings deposited beach. The method comprises the steps that drainage pipes are laid from the outside to the inside of a starter dam along a mountain; seepage drainage pipes are longitudinally laid on the deposited beach along the mountain, and the seepage drainage pipes and the drainage pipes are connected to form a water guide system; transverse slotted seepage drainage plates are laid in the deposited beach, and the two ends of each transverse slotted seepage drainage plate are connected with the longitudinal seepage drainage pipes laid along the mountain; floats connected with the transverse slotted seepage drainage plates are placed on the portion, below the transverse slotted seepage drainage plate, of the deposited beach; longitudinal slotted seepage drainage plates are laid along a tailings pond mountain slope up and down, and the lower ends of the longitudinal slotted seepage drainage plates are connectedwith the seepage drainage pipes; ore is placed in a tailings pond to fill the gaps of the transverse slotted seepage drainage plates and make the beach surface flat, double-layer transverse slotted seepage drainage plates continue to be laid on the beach surface, and the two ends of double-layer transverse slotted seepage drainage plate are connected with the longitudinal slotted seepage drainageplates laid along the mountain; and floats are connected with the lower portions of the double-layer transverse slotted seepage drainage plates. The method is simple in construction, good in stability and good in drainage effect, the strength of the deposited beach is effectively improved, and the construction cost is low.

Description

technical field [0001] The invention is applied to the drainage reinforcement method of high moisture content, superfine particle solid waste stockpiling, high concentration and fine tailings sedimentary beach, and specifically refers to a drainage reinforcement method of ultrafine tailings sedimentary beach. Background technique [0002] Mine ultra-fine tailings ponds are generally located in ravines and are divided into initial dams, accumulation dams, dry beaches, clarification areas and surrounding mountains from the outside of the dam to the inside. When drawing ore, the larger particles of tailings sand remain on the dry beach, and the ultra-fine tailings sand and water flow into the clarification area. In the clarification area, the ultra-fine tailings sand is gradually deposited to form a sedimentary beach and upper clarified water. With the gradual increase of production, The tailings storage capacity is increased, the clarified water surface is increased, and a bar...

AI Technical Summary

Problems solved by technology

When drawing ore, the larger particles of tailings sand remain on the dry beach, and the ultra-fine tailings sand and water flow into the clarification area. In the clarification area, the ultra-fine tailings sand gradually deposits to form a sedimentary beach and upper clarified water. With the gradual increase of production, The tailings storage capacity is increased, and the clarified water surface is increased to form a barrier lake. Since the dry beach and sedimentary beach are composed of fine tailings sand, there is not enough strength to easily cause damage such as dam deformation and dam failure, and the water in the dam body is highly mobile. It is not easy to increase the height and continue to pile up tailings. At present, there is no reliable and effective treatment method

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