The method of filling and mining in the caving area of ​​coal mining face

A technology of coal mining face and mining method, which is applied in the direction of filling, ground mining, mining equipment, etc., can solve the problems of large ground space restrictions, large space and time restrictions, and low coal mining efficiency in the working face, so as to overcome the production capacity Effect of low, good social and economic benefits

Inactive Publication Date: 2016-04-06
HENAN POLYTECHNIC UNIV
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Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a filling mining method in the caving area of ​​the coal mining face, which can effectively solve the problem of large space and time constraints of the coal mining face during coal filling mining. The problem of large ground space restrictions and low coal mining efficiency in the working face

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  • The method of filling and mining in the caving area of ​​coal mining face
  • The method of filling and mining in the caving area of ​​coal mining face
  • The method of filling and mining in the caving area of ​​coal mining face

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[0023] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] Depend on Figure 1 to Figure 4 Given, the present invention is realized by the following steps:

[0025] (1) Excavation of special roadway for filling

[0026] According to the condition of the overlying strata on the coal mining face, combined with the key layer theory of strata control, determine the position of the stable strata above the overlying strata on the working face and the nearest stable stratum to the working face. To determine the construction position and section size of the special filling roadway 30, and complete the excavation and support of the special filling roadway by conventional methods;

[0027] (2) Establish ground filling stations

[0028] At the same time as the construction of the special roadway for filling, according to the ground vacancy and the area to be filled underground, s...

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Abstract

The invention relates to a filling mining method for a caving zone on a coal face and the method can effectively solve the problems that coal filling mining is greatly limited by space of the coal face, time and floor space, and the coal mining efficiency on the coal face is low. The invention adopts the technical scheme that the method comprises the following steps: (1) excavating a special filling roadway; (2) establishing ground filling stations; (3) determining the filling interval of each cycle; (4) drilling grouting holes and connecting pipelines; (5) conducting filling operation; and (6) conducting cycle mining. Compared with other filling methods, the method provided by the invention is free from limits of space of the coal face, time and floor space, can be matched with any coal mining technology under appropriate conditions, can easily achieve high yield and high efficiency on a filling face through the combination with a fully mechanized top coal caving mining method, overcomes the defect of low yield of the conventional filling face, and has favorable social and economic benefits.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a filling and mining method for a caving area of ​​a coal mining face. Background technique [0002] The mining and utilization of coal resources will inevitably cause damage to the living environment of human beings: after coal is extracted from the stratum, it will cause subsidence of the ground surface; gangue discharged from the mining area and fly ash produced by the power plant will occupy the land, pollute the environment, and endanger human safety The problem of "three under" coal mining has become increasingly prominent, and the liberation of "three under" coal mining has become one of the major technical problems that coal mining enterprises urgently need to solve. [0003] The filling mining method can not only utilize the waste generated in the mine production process, but also liberate the "three down" coal resources. It is an effective technical means to control...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16E21F15/00
Inventor 李化敏关金锋王文张若宇焦小健许永祥刘创
Owner HENAN POLYTECHNIC UNIV
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