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Method for reusing upper-layer working face roadway for lower-layer working face

A technology for working face and roadway, applied in tunnels, mining equipment, earthwork drilling, etc., can solve problems such as waste of roadway resources, reduce the amount of roadway excavation works, ease the connection tension, and improve the coal recovery rate.

Active Publication Date: 2021-11-05
SHANXI JINMEI GRP TECH RESEACH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of waste of roadway resources in boundary areas or special areas, the present invention provides a method of reserving the roadway of the upper layered working face as the reuse of the lower layered working face

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  • Method for reusing upper-layer working face roadway for lower-layer working face
  • Method for reusing upper-layer working face roadway for lower-layer working face

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with specific embodiments.

[0024] The present invention is aimed at the problem that roadway resource waste and coal pillar resource loss cannot be reused in the boundary area or special area outside the working face of stratified mining. The specific method of the present invention is to divide the boundary area or special area The two roadways on one side are arranged in different layers, the roadway close to the working face is arranged in the coal body of the upper layer working face, and the outer roadway is arranged in the coal body of the lower layer working face. During the mining process of the working face, the roadway close to the working face is scrapped behind the working face due to the collapse of the roof, and the outer roadway is reserved for the use of the lower stratified working face. , only need to excavate the roadway on the other side of the working face, reduce the amount of...

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Abstract

The invention belongs to the technical field of coal mining, and particularly relates to a method for reusing an upper-layer working face roadway for a lower-layer working face. The method comprises the following steps of (S100) dividing a working face into an upper-layer working face and a lower-layer working face, mining the upper-layer working face first, and then mining the lower-layer working face; (S200) tunneling an upper-layer working face roadway; (S300) stoping the upper-layer working face; (S400) before the lower-layer working face is mined, filling a connection roadway so as to solve the roof contact problem and the goaf conduction problem when the lower-layer working face is stoped to the area; (S500) tunneling the lower-layer working face; and (S600) stoping the lower-layer working face. According to the method, the upper-layer working face roadway is reserved to be reused for the lower-layer working face, so that the problem of waste of roadway resources in a boundary area or a special area is solved, the roadway tunneling work amount is reduced, and the tension situation of mine excavation connection is relieved.

Description

technical field [0001] The invention belongs to the technical field of coal mining, and in particular relates to a method for reserving a roadway in an upper layered working face and reusing it as a lower layered working face. Background technique [0002] For high-gas layered mining mines, in order to meet the ventilation requirements, double-way tunneling is required during the tunneling process of the working face. Under normal conditions, the outer sideways of the working face can be reused for the adjacent working faces of the same layer, but for boundary areas or In the special area working face, the outer roadways of the upper and lower layer working faces cannot be reused after being used in this working face, resulting in a great waste of roadway resources. At the same time, coal pillars are left between the upper layer and the lower layer double roadway, resulting in a waste of coal resources. [0003] Therefore, it is necessary to provide an improved technical so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14E21D9/10E21F15/00
CPCE21D9/14E21D9/10E21F15/005
Inventor 陶广美都海龙王建彬马赛赵斌张江利丛日东王朋卫陈志强王萌原小路马晋琴王帅
Owner SHANXI JINMEI GRP TECH RESEACH INST
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