Repairing method for coal mine small gangue hill

A repair method and technology for gangue hills, which are applied in excavation, construction, infrastructure engineering, etc., can solve the problems of lack of solid waste treatment technology and methods for small outer gangue hills in coal mines, and achieve the effect of ensuring stability.

Inactive Publication Date: 2018-06-29
CHINA UNIV OF MINING & TECH (BEIJING) +2
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Problems solved by technology

However, there is still a lack of comprehensive and systematic solid waste treatm

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  • Repairing method for coal mine small gangue hill
  • Repairing method for coal mine small gangue hill
  • Repairing method for coal mine small gangue hill

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[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0041] As an embodiment of the present invention, take the restoration project of the small gangue dump of the Dayan No. 2 Mine as an example. The No. 2 Dayan Mine (hereinafter referred to as "the No. 2 Mine") is located in the Ewenki Autonomous Banner in the northeastern part of Inner Mongolia, and belongs to the continental semi-arid climate in the cold temperate zone. . The coal-bearing strata of this mine are the Yimin Formation and the lower Damoguaihe Formation of the Mesozoic lower Cretaceous system. The main mining coal seam is buried at a depth of 70-290m, and the roof lithology is fine sandstone and siltstone. The current mining method of the coal mine is mechanized fully mechanized caving back mining, and the r...

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Abstract

The invention discloses a repairing method for a coal mine small gangue hill. The repairing method includes the steps that slope cutting shaping is conducted on the gangue hill, the slope grade valueis adjusted, slope top platform finishing is conducted on the top of the gangue hill, and multistage sloping is conducted on the slope of the gangue hill; reinforcement hooks are embedded in the positions, on a second-stage step and above the second-stage step, on the slope surface; a soil blocking wall is arranged on the surface of the slope of the first-stage step on the slope of the gangue hill, and antiskid piles are arranged at the positions, on the second-stage step of the slope of the gangue hill and above the second-stage step, of a platform; and stones are laid on the slope platform.By means of the repairing method, a manual pond is excavated in the flat ground on the front edge of the gangue hill so that the manual pond and the gangue hill can be ecologically repaired to form the good ecological cycle, and natural sludge substrates in the pond are used as ecological repairing nutriments to achieve ecological repairing of the gangue hill. Meanwhile, after the manual pond is built, a water source can be provided for ecological repairing of the gangue hill, and the manual pond can also serve as a fire extinguishing water source place for the gangue hill or a mine.

Description

technical field [0001] The invention relates to technical fields such as mining, restoration and utilization of land and mine geological environment, and in particular to a restoration method for small gangue hills in coal mines. Background technique [0002] Coal gangue is a rock that is co-deposited and mixed with coal during the coal-forming process, generally in the form of thin layers. A large amount of gangue is produced in the process of coal mining and washing, which is one of the main solid wastes in coal mines. The gangue accumulated on the surface forms gangue hills of various sizes, which has a serious impact on the geological environment of the mine, especially the leaching phenomenon, dust phenomenon, spontaneous combustion phenomenon and other environmental problems caused by the gangue hill are all managed and governed by mining enterprises and the government. key content. [0003] The vast majority of coal mines have gangue dumps, and many closed coal mine...

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Application Information

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IPC IPC(8): E02D17/20
CPCE02D17/20E02D17/207
Inventor 武强刘宏磊孙文洁曾一凡刘守强温挨树乔文光
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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