Soil reconstruction method applied in technology of mining while rehabilitating

A technology that recovers soil while mining, and is applied in ground mining, earth square drilling, underground mining, etc., and can solve problems such as unreasonable utilization

Active Publication Date: 2014-04-23
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

Due to the land subsidence in the middle and high water level mining areas in central and eastern China, the damage is mainly in the form of accumulated water. A larg

Method used

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  • Soil reconstruction method applied in technology of mining while rehabilitating
  • Soil reconstruction method applied in technology of mining while rehabilitating
  • Soil reconstruction method applied in technology of mining while rehabilitating

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Embodiment

[0023] The mining area selected in this embodiment is in a certain mining area with high phreatic water level in the East China Plain. The average burial depth of the coal seam in the mining area is about -800.0m, the average thickness of the coal seam is about 5.0m, the natural surface elevation is between +43.2m ~ +44.6m, the ground slope is between 0 ~ 2°, the terrain is relatively gentle, and the underground diving The buried depth is between -2.5m and -3.0m.

[0024] According to the coal mining subsidence prediction and soil reconstruction simulation analysis in this embodiment, the specific soil reconstruction sequence and construction technology in the mining area are designed. The steps are as follows (see figure 1 ):

[0025] 1) Obtain mining area information data and coal mining dynamic subsidence prediction results - subsidence contours,

[0026] Collect natural condition information such as ground elevation, phreatic depth, and land use status map of the mining ...

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Abstract

The present invention relates to a soil reconstruction method applied in a technology of mining while rehabilitating, and belongs to the fields of mining technology, soil reconstruction technology and land rehabilitation technology. The method comprises the following steps: carrying out on-site collection of related information of a studied mine area, carrying out dynamic coal-mining subsidence prediction analysis, dividing a subsidence area into a plurality of soil reconstruction units, and carrying out soil reconstruction of the subsidence area by applying the technology of mining while rehabilitating, wherein soil reconstruction is carried out according to a soil reconstruction sequence that each soil reconstruction unit of the whole rehabilitation region is coupled with underground mining. The method can ensure high-quality and high-efficiency cultivated land is rehabilitated while improving the cultivated land rehabilitation rate, avoids repeated disturbance of a rehabilitation region soil source, saves unnecessary or repeated rehabilitation construction steps, shortens the rehabilitation time, and reduces the rehabilitation cost.

Description

technical field [0001] The invention belongs to the fields of mining technology, soil reconstruction technology and land reclamation technology, and particularly relates to a soil reconstruction method applied to the technology of recovery while mining. Background technique [0002] China has a large coal output, accounting for about 74% of the primary energy mix. According to the "Tenth Five-Year Plan" of China's environmental protection, coal mining areas focus on land reclamation, strengthen the comprehensive improvement of the mining area environment, establish various types of mining area ecological construction demonstration bases, and gradually form an ecological restoration construction mechanism that is synchronized with production. [0003] 70% of the reclaimed land is cultivated land, and most of the rest is other agricultural land, and the requirements for reclaimed cultivated land are relatively high. The reclamation of subsidence cultivated land should focus on...

Claims

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Application Information

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IPC IPC(8): E21C41/32
Inventor 胡振琪肖武刘坤坤
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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