A kind of local filling mining method for full mining of mine resources on the same plane

A mining method and technology of coal mining method, which are applied in the fields of backfill, ground mining, mining equipment, etc., can solve the problems of gob-side entry retaining difficulty and environmental pollution, and achieve safe and efficient green mining, balanced rock movement, The effect of reducing the deformation of surrounding rock

Active Publication Date: 2020-01-21
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a mine resource full-mining mining method on the same plane, which can solve the environmental pollution caused by ground gangue and the difficulty of retaining roadway support along the gob, improve the recovery rate of coal resources, and realize the safety and high efficiency of coal resources. Green Mining

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  • A kind of local filling mining method for full mining of mine resources on the same plane

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, a kind of mine resource mining method of the present invention will be described in detail.

[0020] Taking the No. 1 mining area of ​​a certain mine as an example, the working faces of this mine are all full-mining and mixed-mining faces on the same plane. Currently, the ZC102 mixed mining face is being mined. The depth of the coal seam is -600m~-800m, and the average thickness of the coal seam is 3.5m. , the average dip angle is 8°, the average thickness of the immediate top is 1.42m, mainly gray mudstone, the average thickness of the basic top is 5.52m, mainly dark gray sandy mudstone, and the average thickness of the immediate bottom is 4.15m, mainly gray black mudstone. The length of the mixed mining face is 260m, the advancing length is 1500m, the length of the solid filling section of the mixed mining face is 100m, and the length of the fully mechanized caving section is 160m. The mixed mining face adopts a set of c...

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Abstract

The invention discloses a coplanar complete-mining local-filling mining method of mine resources. The coplanar complete-mining local-filling mining method specifically comprises the steps: the same mixed mining faces are arranged in one mining block one by one, and coal resources are stoped through methods of complete mining and local filling; fully mechanized mining caving sections and solid filling sections are arranged in sections in the mixed mining faces, and harmonious mining of a whole working face is achieved through transition hydraulic supports between the fully mechanized mining caving sections and the solid filling sections; and the length of the mixed mining faces is 200-400 m, the length of the solid filling sections is one third to one second the length of the mixed mining faces, and mining roadways in one sides of the solid filling sections are reserved through a gob-side entry retaining technology to serve as mining roadways in one sides of the fully mechanized miningcaving sections of the adjacent mixed mining faces. The advantages of fully mechanized mining and filling mining are combined, the mine pressure behavior intensity of a gob-side entry under the deep high stress environment can be remarkably weakened, gob-side entry deformation and the section coal pillar loss are reduced, meanwhile solid waste such as gangue and coal ash are treated, and safe andefficient greening mining of the coal resources can be achieved.

Description

technical field [0001] The invention relates to the technical field of gob-side retaining and solid filling mining, in particular to a local filling mining method for full mining of mine resources on the same plane. Background technique [0002] With the high-intensity mining of coal resources, the shallow coal resources in my country are gradually exhausted, and coal mining is gradually shifting to the deep. However, the deep surrounding rock stress is huge, the mine pressure is strong, and the roadway is usually difficult to maintain. In order to ensure the stability of the mining roadway in the existing fully mechanized caving mining, it is usually necessary to reserve a 30-60m section to protect the coal pillar, which causes a serious waste of coal resources. Although solid filling mining can effectively control the mine pressure in deep stopes and deal with solid waste such as gangue and fly ash, it is difficult to achieve high production and high efficiency because of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/18E21F15/00
CPCE21C41/18E21F15/005
Inventor 张吉雄张强张卫清武中亚李猛王佳奇
Owner CHINA UNIV OF MINING & TECH
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