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Ecological restoration method for side slope of late dam of tailing pond under condition of no earthing

A technology without covering soil conditions and restoration methods, applied in the fields of botanical equipment and methods, excavation, horticulture, etc., can solve problems such as increasing the production cost of mines, loss of cultivated land, etc., and achieve the effect of suppressing runoff and maintaining soil and water.

Active Publication Date: 2012-04-18
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Many mines in our country are distributed in deep mountains and rocky areas, especially in the south, many mines have no soil to take, and some even purchase additional cultivated land to obtain soil, which not only causes the loss of cultivated land, but also greatly increases the production cost of mines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The ecological restoration of the tailings sand slope of the copper mine tailings pond with an area of ​​more than 13 hectares includes the following steps:

[0025] 1) In order to protect the flatness of the dam operation surface in the later stage and not change the design slope of the loose body, the upper slope is divided into operation areas every 50m;

[0026] 2) Excavate the seedling planting ditch according to the contour line of the dam in the later stage of the tailings pond, and start excavation at 0.5m from the top. It has strong wind and rain resistance. The planting ditch is 20cm wide and 15cm deep.

[0027] 3) Apply organic fertilizer, phosphate fertilizer, and compound fertilizer in the ditch with a mass ratio of 1:1:0.6, and the total amount depends on the area, which is 100g / m 2 . Wherein the organic fertilizer is chicken manure fermented organic fertilizer, the phosphate fertilizer is calcium superphosphate, and the compound fertilizer is N, P, K c...

Embodiment 2

[0039] The basic process is the same as in Example 1, except that the mass ratio of bermudagrass, alfalfa, white clover and sandawang seeds is 10:2:2:2, and the total amount of sowing is 12g / m 2 .

Embodiment 3

[0041] The basic process is the same as in Example 1, except that the ratio of organic fertilizer, phosphate fertilizer, and compound fertilizer applied in the vetiver planting ditch is 2:2:1, and the total amount of application is 80g / m 2 .

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Abstract

The invention belongs to the technical field of ecological restoration of discarded land in mining area, relating to a stable ecological restoration technology for vegetation on the side slope of a late dam of a tailing pond under the condition of no earthing soil, and realizing a root system network for sand consolidation by planting vetiveria zizanioides and seeding side slope afforesting grassseeds between the seed rows of the vetiveria zizanioides, wherein the proportioning of the side slope grass seeds are Bermuda grass, white clover, alfalfa and astragalus adsurgens the proportion of which is 5-10:1-2:1-2:1-2. The method of the invention can be used for carrying out ecological restoration of the side slope of late dam of the tailing pond under the condition of no earthing, has the effects of stabilizing side slope, conserving water and soil, restraining running water and raising dust of the tailing sands and the stable vegetable layer is established by using the method.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration of abandoned mine land, and relates to a slope vegetation stabilization ecological restoration technology of a late dam without covering soil in a tailings reservoir. Background technique [0002] Tailings pond is an indispensable and important part of mine beneficiation production process facilities. The stability of the dam body of the tailings pond, especially the stability of the dam slope in the later stage, is the lifeline for the safe operation of the tailings pond. The post-stage dams of tailings ponds in my country for wet tailings discharge are mostly piled with coarse tailings sand that meets the strength requirements of engineering mechanics. According to this stacking technology, along with the tailings discharge process, the tailings dam will be built step by step according to the elevation of the tailings pond. To meet the storage capacity of the tailings storage, l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20A01G1/00
Inventor 戴宏文周连碧郑学敏
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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