Method for recultivating collapsed soil in coal mining

An earthwork and land technology, applied in land preparation methods, water conservancy projects, artificial islands, etc., can solve the problems of insufficient backfill gangue, inability to achieve backfill and cover soil in subsidence areas, and large engineering volume, achieving high social, economic and environmental benefits, and improving land use. Effectiveness of utilization rate and protection of land resources

Inactive Publication Date: 2012-06-27
甄文杰
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Problems solved by technology

This method has the following disadvantages: large amount of engineering, high cost; insuf

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  • Method for recultivating collapsed soil in coal mining
  • Method for recultivating collapsed soil in coal mining

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Such as figure 1 As shown, a method for reclamation of coal mining landslides, a specific embodiment comprises the following steps:

[0019] (1) Water pumping: According to the actual situation, if there is accumulated water in the landslide, the water should be pumped first, and the swamp should be pumped from the surface. After the accumulated water is drained, it should be dug deep to 4-5 meters underground.

[0020] (2) Excavation: Use an excavator to dig trapezoidal pits in the landslide after pumping water, and dig the same pits at intervals of 4 meters, so that there is soil in the middle to connect to the earth, which is conducive to the growth of the above crops.

[0021] (3) Build a biogas digester: Build a biogas digester in each pit of the above steps, that is, a centralized biogas digester, backfill the remaining earth with the original soil to cover th...

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Abstract

The invention discloses a method for recultivating collapsed soil in coal mining, which belongs to the technical field of the recultivation of collapsed soil. The method for recultivating the collapsed soil in coal mining comprises the following steps of: carrying out water pumping on accumulated water in the collapsed soil, adopting surface water pumping for a swampland and carrying out a next step directly if no accumulated water exists; digging trapeziform pits in the collapsed soil after water pumping and digging to an underground part at 4 to 5 meters deeply; constructing a methane tank in each pit in which earth is taken out, carrying out back filling by the original soil and using the residual earth for covering a collapsed area; covering a surface layer by using the soil after air outlets and feed ports, which are required by the methane tanks, are remained at the upper faces of the methane tanks, wherein the covering soil reaches 0.8 to 1.2 meter(s); and developing a planting industry and a breeding industry to the soil after treatment. The method for recultivating the collapsed soil in coal mining has the beneficial effects that methane tanks are constructed by utilizing the earth of the collapsed soil of an ore area, and the upper faces of the methane tanks are covered with the soil for planting trees, flowers and the like to develop the planting industry and the breeding industry after the methane tanks are constructed. In this way, a bottomland is lifted, the recultivation of collapsed soil is also realized, the full utilization of soil is achieved, and the utilization rate of the soil is greatly enhanced.

Description

technical field [0001] The invention relates to a method for reclamation of coal mining landslides, and belongs to the technical field of reclamation of landslides. Background technique [0002] Land reclamation is to re-use the lost production capacity of the land occupied or destroyed due to mining, building materials industry development and other industrial and mining waste accumulation. It is an effective way to prevent environmental pollution and restore ecological balance. [0003] If ground subsidence is caused by underground mining in the mining area, when the surface height after the subsidence is lower than the water level before the topsoil layer, or when the accumulated water in the subsidence area is difficult to discharge, the original fertile land will become a swamp or lake. It is a huge waste for more and more precious land resources. The traditional method of land reclamation in the subsidence of the traditional mining area mainly adopts the gangue backf...

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Application Information

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IPC IPC(8): A01B79/02E02D29/045
Inventor 甄文杰
Owner 甄文杰
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