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A long-distance advanced detection method for directional drilling and excavation working face

A technology for excavating working face and advanced detection, applied in the field of geophysical exploration, can solve the problems of effective stereo imaging, single means, insufficient detection distance, etc.

Active Publication Date: 2022-06-28
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a long-distance advanced detection method for the excavation working face in directional drilling, which solves the serious shortage of detection distance in the prior art, single means, and inability to detect hidden disaster-causing water bodies and Effective three-dimensional imaging of the radial hidden structure type of the borehole, so as to guide the rapid excavation of the roadway

Method used

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  • A long-distance advanced detection method for directional drilling and excavation working face
  • A long-distance advanced detection method for directional drilling and excavation working face
  • A long-distance advanced detection method for directional drilling and excavation working face

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Embodiment Construction

[0066] The concealed disaster-causing water bodies in the present invention refer to those hidden in the coal seam and its surrounding rock, which may induce disasters during the mining process, including water-filled goafs, water-filled collapse columns, various water bodies, faults, collapse columns, gas and stress anomaly areas, ignition points, etc.

[0067] The concealed structure in the present invention refers to the geological structure covered by the loose sediments on the surface of the Quaternary or hidden under the surface bedrock. Hidden structures include hidden faults, hidden folds, hidden uplifts, hidden sags, and hidden rock masses.

[0068] When calculating the transient electromagnetic data of the borehole and obtaining the stereoscopic imaging interpretation, the invention cleverly uses the Hermit interpolation algorithm to improve it, and performs the stereoscopic imaging interpretation for the data based on the unique algorithm. Among them, the Hermit in...

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Abstract

The invention provides a long-distance advanced detection method for a directional drilling working face, which belongs to the technical field of geophysical exploration and can realize drilling transient electromagnetic and drilling in long-distance (≥500m) directional drilling at the driving working face. The radar joint detection is a long-distance advanced detection working device that effectively integrates the advantages of directional drilling and geophysical detection, and uses a unique algorithm to interpret the data with three-dimensional imaging to ensure rapid tunneling and green, efficient and intelligent mining of coal mines.

Description

technical field [0001] The invention belongs to the technical field of geophysical exploration, and relates to a working device and a data processing and interpreting method for providing long-distance geological disaster advance detection for the rapid excavation of the roadway by utilizing the directional drilling of the excavation working face. Background technique [0002] With the gradual development of coal development in my country, complex geological structures and hidden flood-causing factors have aggravated influence on coal mine safety production, especially in the process of coal mine roadway excavation, faced with complex and unknown geological conditions, the advanced nature of geological guarantee technology and the Accuracy puts forward higher requirements. The tunneling work of underground mines must ensure safety, and the realization of rapid tunneling must be based on safety, and involves technical fields such as rapid tunnel formation, advanced detection a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V11/00G01S13/88G01S13/89
CPCG01V11/00G01S13/885G01S13/89
Inventor 范涛张幼振李萍蒋必辞张鹏赵睿汲方林李宇腾
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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