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Exploration method for abnormal area of stope face

A technology for mining working faces and abnormal areas, which is applied in the field of detection, can solve problems such as the inability to accurately collect abnormal data in developmental abnormal areas and hydrological dynamic changes, and achieve automation and intelligence, improve anti-interference ability, and improve accuracy Effect

Pending Publication Date: 2022-06-28
HUAINAN MINING IND GRP
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  • Abstract
  • Description
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Problems solved by technology

The existing method cannot accurately collect abnormal data and hydrological dynamic changes in abnormally developed areas during the mining of the working face, and there are potential safety hazards

Method used

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  • Exploration method for abnormal area of stope face
  • Exploration method for abnormal area of stope face
  • Exploration method for abnormal area of stope face

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Embodiment Construction

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention. examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The embodiment of the present invention discloses a method for detecting an abnormal area of ​​a mining face, comprising the following steps:

[0037] Step A, such as figure 1 As shown in the figure, after the mining face is penetrated, the combination of slot wave seismic method and audio frequency electric perspective method is used to explore the working face...

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Abstract

The invention discloses a method for exploring an abnormal area of a stope face, which relates to the technical field of detection and comprises the following steps: exploring the stope face and a working face bottom plate by adopting a geophysical prospecting method, determining an abnormal area to be monitored, and constructing a group of directional drill holes; selecting a directional drilling hole before grouting to carry out transient electromagnetic method detection; the method comprises the steps that two directional drill holes are selected as monitoring holes, grouting is conducted on the two monitoring holes firstly, after grouting of the two monitoring holes is completed, grouting is conducted on the other directional drill holes, and inter-hole resistivity monitoring is conducted on the grouting process of the directional drill hole located between the two monitoring holes through the two monitoring holes. The method has the advantages that abnormal data and hydrological dynamic change conditions of the abnormal development area can be accurately collected in the working face stoping period, feedback is timely, and a basis is provided for safe working face stoping.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method for detecting abnormal areas of a mining face. Background technique [0002] Before coal mining, it is necessary to analyze the three-dimensional seismic data to determine whether there is an abnormal development area near the cutting hole of the working face. When there is an abnormally developed area, the existing method is to use the combination of surface + downhole, conventional short drilling + directional drilling to explore and control it before the working face is recovered. The patent document with the publication number of CN102645674A discloses a pre-mining three-dimensional detection method for a coal seam in a working face. Comprehensive detection of the inside of the surface, the bottom plate, the top plate and the periphery. The existing method cannot accurately collect abnormal data and hydrological dynamic changes in abnormally developed areas durin...

Claims

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Application Information

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IPC IPC(8): G01V3/10G01V3/28G01V3/38E21F17/18
CPCG01V3/101G01V3/28G01V3/38E21F17/18
Inventor 孔皖军王刚常成林薛悟强杨成超
Owner HUAINAN MINING IND GRP
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