Uranium mine exploration residual facility management and vegetation recovery method in high-cold high-altitude regions

A vegetation restoration and high-altitude technology, applied in the fields of soil preparation methods, botanical equipment and methods, ground mining, etc., can solve the problems of ineffective vegetation restoration and difficult improvement of small ecological environment

Active Publication Date: 2010-06-09
四川省核工业地质局分析测试中心
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  • Application Information

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Problems solved by technology

In order to improve the living environment, they voluntarily carried out governance, volunteered to build retaining walls at the bottom of a ...

Method used

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  • Uranium mine exploration residual facility management and vegetation recovery method in high-cold high-altitude regions
  • Uranium mine exploration residual facility management and vegetation recovery method in high-cold high-altitude regions
  • Uranium mine exploration residual facility management and vegetation recovery method in high-cold high-altitude regions

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Embodiment

[0068] Treatment of legacy facilities for uranium mine exploration in high-cold and high-altitude regions (Zoige Plateau region) and vegetation restoration methods, the method includes:

[0069] 1) Cover the land to be treated with soil; determine the thickness of the covering layer according to the radon exhalation rate and the penetrating radiation dose rate, and then cover the land to be treated;

[0070] 2) Carry out slope protection and isolation on the covered treatment area;

[0071] 3) Plant plants on top of the mulch.

[0072] The covering layer is a clay layer with a thickness of 50 cm (the thickness of the clay layer can also be 10-50 cm). can also be like figure 1 Shown is a 20cm (may also be 10-30cm, etc.) thick clay layer 1 and a mixed layer 2 of small particles of regolith and clay with a thickness of 30cm (may also be 20-40cm, etc.) under the clay layer.

[0073] Available Figure 2-Figure 5 As shown, the geocell slope protection isolates the covered treatm...

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Abstract

The invention discloses a uranium mine exploration residual facility management and vegetation recovery method in high-cold high-altitude regions. The method comprises the following steps: 1) covering the land needing to be managed by soil; determining the thickness of a covering layer according to radon exhalation rate and penetrating radiation dose rate; and then covering the land needing to be managed; 2) carrying out slope protection and insulation on the covered managing land; 3) planting indigenous plants which do not adsorb radioactive nuclide on the covering layer, comprising locally collected wild weed seeds, plateau Tamarix chinensis and at least two of annual ryegrass, Elymus sibiricus cv. Chuancao No.1, dahusian wildrye, Poa pratensis, chewings fescue and white clover. The invention not only can meet the radiation protective requirements of inhibiting the radon exhalation rate and shielding the penetrating radiation dose rate, but also can ensure earlier stage stability of the covering layer and continue survival optimum succession of vegetation, thus ensuring that the management of the waste (ore) piles and the exploratory trenches in high altitude regions can achieve long-term stability and optimum ecological environment efficiency and economical efficiency.

Description

Technical field: [0001] The invention relates to a method for treating legacy facilities of uranium mine exploration in high-cold and high-altitude areas and restoring vegetation. Background technique: [0002] In the Zoige plateau area, during the 35 years from 1959 to 1993, as many as 8 or more geological teams carried out many types of exploration activities in this area. Exploration Disclosure Work: Drilling at 20×10 4 More than m, pit exploration 84834, trench up to 6×10 4 More than m, the waste (ore) rock accumulated on the surface exceeds 930,000 tons, and the total area of ​​the exploration area reaches 210km 2 . These legacy radioactive waste (ore) rocks, trenches, pit (well) mouths and drilling rig platforms and other facilities not only caused radioactive pollution to the local local environment, destroyed the fragile ecological environment in the plateau area, but also affected the production and production of local Tibetan herdsmen. Lives have had serious re...

Claims

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Application Information

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IPC IPC(8): E21C41/32A01G1/00A01B79/02E02D3/00
CPCE21C41/32
Inventor 刘林何航杨年吴冬童琪
Owner 四川省核工业地质局分析测试中心
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