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A cohesive soil primary dam structure for upstream tailings pond

A technology for initial dams and tailings ponds, applied in waterway systems, marine engineering, construction, etc., can solve the problems of poor water permeability of earth-rock dams, high construction costs, consumption of large stone resources, etc. Cost, simple construction effect

Active Publication Date: 2022-03-15
SINOSTEEL MAANSHAN INST OF MINING RES +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the problems of consuming a large amount of stone resources, high construction cost and poor water permeability of earth-rock dams in the construction of existing tailings pond permeable dams, and provide a low construction cost, small stone consumption, and good water permeability. For the cohesive soil initial dam structure of the upstream tailings pond, the designed initial earth dam can meet the water permeability requirements of the permeable dam. When the site stone is not enough to build the initial rockfill dam and the cost of transporting the stone is high, the method of the present invention can be used effectively. reduce the cost, and make the initial earth dam meet the use requirements of the permeable dam

Method used

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  • A cohesive soil primary dam structure for upstream tailings pond
  • A cohesive soil primary dam structure for upstream tailings pond

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Embodiment Construction

[0035] A cohesive soil primary dam structure for an upstream tailings pond according to the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] Depend on figure 1 The present invention is shown a kind of cohesive soil primary dam structure cross-sectional schematic diagram for upstream type tailings pond and combined with figure 2 It can be seen that a kind of cohesive soil initial stage dam structure used for upstream tailings reservoir of the present invention is provided with abutment intercepting ditches on the mountains on both sides of the initial stage dam, and dam foot drainage ditch 4 is set at the dam foot of the initial stage dam. The water outlet end of the dam abutment intercepting ditch is connected with the dam foot drainage ditch 4, and the following technical scheme is adopted:

[0037] 1) The fine-grained soil layer, composite geomembrane, coarse sand layer, block stone layer, a...

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Abstract

The invention discloses a cohesive soil primary dam structure used for an upstream tailings pond. Firstly, an anti-seepage layer at the bottom of the primary dam body is laid on the bottom of the primary dam body, and an upstream seepage drainage edge of the primary dam is respectively arranged on the upper and lower reaches of the primary dam. body (1), the seepage prism (1') downstream of the initial dam, and the initial dam seepage mattress (2) is laid on the anti-seepage layer at the bottom of the initial dam body, and the lower end of the vertical seepage blind ditch pipe (3) is connected to the The initial dam drainage mattress (2) is connected; the oblique drainage blind ditch is pre-buried at the contact position between the initial dam and the mountain, and the horizontal drainage blind ditch is pre-buried at the contact position between the initial dam and the mountain; the initial dam is piled up layer by layer from bottom to top , and layer-by-layer compaction, the anti-seepage slope protection layer (5) is constructed on the upstream slope of the initial dam. The oblique drainage blind ditch, the horizontal drainage blind ditch, the upstream seepage drainage prism of the initial dam, the downstream seepage drainage prism of the initial dam, the vertical seepage drainage blind ditch pipe and the initial dam seepage drainage mattress of the present invention jointly constitute a combined seepage drainage system, can effectively reduce the dam body infiltration line.

Description

technical field [0001] The invention relates to a tailings dam, in particular to a cohesive soil initial dam, which can be widely used in the construction of upstream tailings dams in the area where the tailings dam is located where stone resources are scarce, it is difficult to build a permeable rockfill dam and the transportation is inconvenient. , which can effectively reduce the wetting line of the dam body. Background technique [0002] The tailings pond is a special industrial building and one of the three major control projects of the mine. It is mainly composed of an initial dam, a tailings accumulation dam, a drainage system, and a monitoring system. The key to ensure the safe operation of the accumulation dam is to lower the soaking line, drain the water out of the dam body as much as possible, and try to retain the tailings. [0003] According to whether the initial dam is permeable, tailings ponds can be divided into two types: permeable tailings ponds and imper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B7/02E02B3/16E03F3/04
CPCE02B7/02E02B3/16E03F3/046
Inventor 许传华段蔚平毛志远邱宇杨强胜田伟虎倪强藕明江翁金红吴光富曹金海鲁立胜汪明海林启祥
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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