On-site detection method for hard basic top fracture parameters of stope face

A technology of mining working face and detection method, applied in the direction of measuring devices and instruments, can solve the problems of inability to obtain basic roof fracture parameters, unable to fully reflect the basic roof fracture laws, etc.

Active Publication Date: 2019-08-16
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

The detection method of this technology is different from that of the present invention, and what it detects is only the advanced fracture distance of the basic roof direction, and cannot obtain the fracture parameters of the basic roof lateral direction, and cannot fully reflect the breaking law of the basic roof

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  • On-site detection method for hard basic top fracture parameters of stope face
  • On-site detection method for hard basic top fracture parameters of stope face
  • On-site detection method for hard basic top fracture parameters of stope face

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Embodiment Construction

[0114] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0115] The on-site detection method for the fracture parameters of the hard basic roof of the mining face of the present invention includes two parts: the detection of the lateral fracture of the basic roof and the detection of the trending fracture of the basic roof:

[0116] Part I: Basic apical lateral fracture detection

[0117] Basic apical fracture detection involves the following steps:

[0118] Step 1.1: As the working face advances, artificially build the roadside filling body 13 at the edge of the goaf, and then reserve the transport roadway in the upper section as the return air roadway in the lower section; combined with the site conditions of the working...

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Abstract

The invention discloses an on-site detection method for hard basic top fracture parameters of a stope face, which comprises the following steps: respectively arranging a basic top lateral fracture andbasic top strike fracture monitoring station at two different positions of a roadway with a cutting hole, respectively arranging drill holes at the monitoring stations, and combining a deep hole rockstratum displacement meter and a drill hole camera peeping instrument at the basic top lateral fracture monitoring station to detect the basic top lateral fracture condition of the working face; monitoring the basic top strike fracture condition by using a rock stratum displacement meter at the basic top strike fracture monitoring station; and the on-site detection method for hard basic top fracture parameters of a stope face can directly obtain field data, more truly and effectively analyze basic top fracture parameters and provide data reference for determining the position of the gob-sideroadway.

Description

technical field [0001] The invention relates to the technical field of basic roof movement monitoring in mining working faces, and in particular to a method for on-site detection of fracture parameters in the direction of the hard basic roof and the lateral direction of the basic roof (collectively referred to as the horizontal direction of the basic roof) of the mining working face. Background technique [0002] The production practice shows that after the longwall working face is mined, the rock layer with a hard basic roof has a large suspension distance and a long time of suspension. The pressure can easily lead to the crushing of the stent and the destruction of the filling body beside the roadway. Only by understanding the law of basic roof movement can we effectively determine the pressure force of the stope, the location of the gob-side roadway, and realize the scientific and quantitative design of the stope support. Therefore, it is necessary to grasp the breaking l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/02G01B21/16G01B21/22
CPCG01B21/02G01B21/16G01B21/22
Inventor 王俊杨尚李学慧邱鹏奇郝嘉伟胡善超黄万朋
Owner SHANDONG UNIV OF SCI & TECH
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