Ecological restoration management method for coal spontaneous combustion fire potential areas

A technology for ecological restoration and spontaneous combustion of coal, applied in land preparation methods, botanical equipment and methods, climate change adaptation, etc. Time to destroy state, effect to speed up progress

Inactive Publication Date: 2015-03-25
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, ecological restoration models and technologies for this kind of coal spontaneous combustion hidden d

Method used

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  • Ecological restoration management method for coal spontaneous combustion fire potential areas
  • Ecological restoration management method for coal spontaneous combustion fire potential areas
  • Ecological restoration management method for coal spontaneous combustion fire potential areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The implementation site of this embodiment is Guojiawan Coal Mine in Yushen Mining Area, Shaanxi.

[0060] 1. Topsoil stripping and excavation

[0061] The excavated soil is the surface soil of the mining area and the deep, non-polluted loess parent material below it, that is, the 100cm soil layer. The physical and chemical properties of this part of the soil layer are similar, and it has the water and nutrients required for the growth of head vegetation. After reasonable fertilization, it can reach or even exceed the fertility of the soil before destruction;

[0062] 2. Earth making

[0063] Implement a combination of internal and external drainage, effectively use the terrain to discharge, and reduce the area and degree of land damage. The inner row is to discharge the stripped objects into the goaf in the open pit; the outer row is to discharge the stripped objects to the goaf outside the open pit;

[0064] 3. Water and soil conservation engineering

[0065]In th...

Embodiment 2

[0126] The implementation location of this embodiment is a certain fire hazard area in Gansu.

[0127] The difference with said embodiment 1 is:

[0128] 1, the thickness of the soil layer of the soil excavated by the stripping of the topsoil is 50cm;

[0129] 2. The loess parent material of the step 4 is directly covered, and the excavation depth of the soil layer is 50cm;

[0130] 3. The specifications of the arborvitae planting holes in the step 5 are 10 cm in bottom diameter and 10 cm deep; the specifications of the seabuckthorn planting holes are 10 cm in bottom diameter and 10 cm deep;

[0131] 4. The mixing ratio of the step 5 is 1:5 or 2:4 between cypress arborvitae and seabuckthorn; the row spacing between cypress arborvitae and sea buckthorn is 1m×2.0m, 1000 plants / hm 2 , or arborvitae 1m×4.0m, seabuckthorn 1.0m×3.0m;

[0132] 5, in the tending management of described step 5, the side branches of the trunk base 10cm are pruned by arborvitae;

[0133] 6. For the a...

Embodiment 3

[0137] The implementation location of this embodiment is a certain fire hazard area in Shanxi.

[0138] The difference with described embodiment 1 and 2 is:

[0139] 1. The thickness of the soil layer of the soil stripped and excavated from the topsoil is 200cm;

[0140] 2. The loess parent material in the step 4 is directly covered, and the excavation depth of the soil layer is 200cm;

[0141] 3. The specifications of the arborvitae planting holes in the step 5 are 80 cm in bottom diameter and 80 cm deep; the specifications of the seabuckthorn planting holes are 60 cm in bottom diameter and 60 cm deep;

[0142] 4. For the mixing ratio of step 5, the ratio of arborvitae and seabuckthorn is 8:5 or 9:4; the row spacing of arborvitae and seabuckthorn is 3.0m×2.0m, 1000 plants / hm 2 , or arborvitae 3.0m×4.0m, seabuckthorn 5.0m×3.0m;

[0143] 5, in the tending management of described step 5, the side branches of the trunk base 50cm are pruned by oriental cypress;

[0144] 6. For...

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Abstract

The invention discloses an ecological restoration management method for coal spontaneous combustion fire potential areas and standards and aims to provide an ecological restoration mode and technology for loess hilly-gully regions fragile in ecological environment and high in potential fire risk to meet the requirement of large-area ecological restoration projects. Methods and techniques are provided for ecological restoration of control regions by a series of ecological restoration methods including reclaiming land while mining by combination of topsoil resource exploitation, internal drainage and external drainage, performing erosion and torrent control works, adopting engineering technologies and biological methods for reclamation, planting trees for greening and the like.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to an ecological restoration management method for coal spontaneous combustion hidden danger areas. Background technique [0002] The Guojiawan Coal Mine in Fugu County, Shaanxi Province is located in the border area between the Loess Plateau and the Mu Us Desert in northern Shaanxi. The landform unit of the control area belongs to the loess hilly and gully area. Except for the outcropping of the Yan'an Formation strata in the gully, most of it is covered by Quaternary Covered by aeolian sand and loess, the ecological environment is relatively fragile. [0003] Due to the fragmented terrain, dense valleys, loose topsoil structure, sparse vegetation, and the lack of supporting facilities in the original small coal mining, improper disposal of waste and other factors in this area, it is very easy to cause disastrous environmental geological phenomena such as fires. At ...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G23/00A01G1/00
CPCY02A40/22Y02P60/40
Inventor 孙学阳
Owner XIAN UNIV OF SCI & TECH
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