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Anti-seepage structure and anti-seepage treatment method for surface mine pit bottom

A technology for open-pit and mines, applied in infrastructure engineering, protective devices, buildings, etc., can solve the problems of high cost of anti-seepage structure and poor anti-seepage effect, and achieve the effect of increasing cost, increasing drainage costs, and increasing water inflow

Active Publication Date: 2016-02-17
ANHUI MASTEEL ENG & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Aiming at the problems of high cost and poor anti-seepage effect of the anti-seepage structure at the bottom of the open-pit pit in the prior art, the present invention provides an anti-seepage structure at the bottom of the open-pit mine and a method for anti-seepage treatment

Method used

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  • Anti-seepage structure and anti-seepage treatment method for surface mine pit bottom

Examples

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Embodiment 1

[0042]For further describing the present invention, below in conjunction with accompanying drawing and example the present invention will be further described:

[0043] A kind of anti-seepage structure at the bottom of the open-pit mine of this example, the bottom of the open-pit 1 is a rock structure; at the bottom of the open-pit 1 upwards, such as figure 1 As shown in Fig. 1, the lower cushion layer 2, geomembrane 3, upper cushion layer 4 and protective layer 5 are laid in sequence; the lower cushion layer 2, geomembrane 3, upper cushion layer 4 and protective layer 5 are compacted clay, two cloth and one membrane Composite geomembrane, flattened tailings and glue-tailed sand; the thickness of compacted clay is 300mm, and both the flattened tailings and glue-tailed sand are 100mm; the gray-sand ratio of glue-tailed sand is 1:4; the two-cloth-one-film composite geomembrane The film thickness is not less than 0.5mm, and the cloth is geotextile;

[0044] The method for anti-s...

Embodiment 2

[0052] An anti-seepage structure at the bottom of an open-pit mine in this example, the basic structure is the same as in Example 1, and the improvements are: the glue tailing sand is replaced by a C10 concrete prefabricated slab; the flattened tailing sand is replaced by ordinary fine sand; cloth-membrane composite geomembrane It is a composite geomembrane with two cloths and one film, which improves the anti-seepage effect.

[0053] The anti-seepage structure at the bottom of a kind of open-pit mine pit and the method for anti-seepage treatment thereof of this example, the steps are the same as in Embodiment 1.

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Abstract

The invention discloses an anti-seepage structure and an anti-seepage treatment method for a surface mine pit bottom, and belongs to the technical field of mining. According to the anti-seepage structure for the surface mine pit bottom, the surface pit bottom is upwards sequentially paved with a lower cushion layer, a geomembrane, an upper cushion layer and a protective layer. The anti-seepage treatment method comprises the following steps: treating the surface pit bottom; treating the lower cushion layer; treating the geomembrane; treating the upper cushion layer; and treating the protective layer. According to the anti-seepage structure and the anti-seepage treatment method disclosed by the invention, the leakage problem of the surface mine pit bottom is solved with low cost, the anti-seepage effect is good, and the problems that under-mine water inflow is increased, under-mine water draining cost is increased, and even a mine flooding accident is possibly generated under a severe condition due to the fact surface water enters underground rocks along shallow broken gaps and floods into the pit along original small fractures when a lower ore body of the surface pit bottom is exploited after the surface mining is ended is effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to an anti-seepage structure at the bottom of an open pit mine and a method for anti-seepage treatment. Background technique [0002] On December 22, 1998, the Ministry of Construction issued the "Technical Specifications for the Application of Geosynthetics" (GB50290-98), in order to promote the application of geosynthetics in engineering construction, unify the technical requirements for design, construction, and acceptance, and ensure that the engineering Quality, advanced technology, economical and reasonable, safe and applicable, made this specification. The specification applies to the design, construction and acceptance of geosynthetics used in water conservancy, railway, highway, water transportation, construction and other projects. Corresponding regulations have been made on the general regulations on anti-seepage, anti-seepage structure, engineering anti-seepa...

Claims

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Application Information

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IPC IPC(8): E02D31/02
CPCE02D31/02
Inventor 王春仁陈洪刘金龙岳国均
Owner ANHUI MASTEEL ENG & TECH GRP
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