Omnidirectional slot wave seismic detection method in coal mine excavation process

Abstract

The invention provides an omnidirectional slot wave seismic detection method in a coal mine excavation process. The method comprises the steps of hardware connection and system arrangement, data acquisition, seismic data preprocessing, data processing analysis and offset imaging and comprehensive geological interpretation. Compared with the prior art, the method provided by the invention has the advantages that the omnidirectional slot wave detection method can timely predict left and right working faces, and the coal seam occurrence, geological structure, stress pressure and the like in front of a heading face, and provides geological parameters and recommendations for excavation and recovery; coal mine geological hazards can be effectively controlled; casualties caused by geological causes are reduced; the coal mine safety is protected; through the method, the detection distance of left and right side walls of a roadway is up to 100 to 300 meters each time, and the front of the heading face is up to 100 meters; a large number of detection times can be saved in the excavation process; and the detection efficiency can be improved.

Description

technical field [0001] The invention belongs to the mine safety technical field of coal mine roadway excavation, and is mainly used for accurately detecting geological anomalies such as small faults, collapse columns, goafs and scour zones in front of coal mine roadway faces, and specifically relates to a coal mine excavation process. Omni-directional channel wave seismic detection method. Background technique [0002] It is easy to miss some small structures in the stage of coalfield surface exploration, such as small and medium faults in coal seams, collapse columns, etc. These small structures are difficult to find in the stage of coalfield general survey and exploration or even mining area detailed survey, whether it is drilling or other geophysical methods. Accuracy, the effect is not obvious, and the cost increase caused by increasing the accuracy of ground exploration is huge. These geological structures in the coal seam, such as small faults, collapse columns and sco...

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Problems solved by technology

[0002] It is easy to miss some small structures in the stage of coalfield surface exploration, such as small and medium faults in coal seams, collapse columns, etc. These small structures are difficult to find in the stage of coalfield general survey and exploration or even mining area detailed survey, whether it is drilling or other geophysical methods. Accuracy, the effect is not obvious, and the cost increase caused by increasing the accuracy of ground exploration is huge. These geological structures in the coal seam, such as small faults, collapse columns and scour zones, seriously threaten the safe production of coal mines, especially in the stage of coal mine roadway excavation Because the geological conditions of coal seams cannot be ascertained in advance, the geological structures in coal seams often cause production accidents such as landslides, roof caving, water inrush and gas outburst, which cause huge economic losses to coal mine production and seriously endanger the lives of coal mine personnel. During the excavation of coal mine roadway, it is one of the main tasks of coal production enterprises to detect the distribution of the geological structure ahead, and then carry out reasonable planning and management work, so as to ensure the safe production of coal mines.

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