Rock burst early warning device and use method
The invention relates to the technical field of coal mining, and provides a rockburst early warning device and a using method, and the rockburst early warning device comprises an explosion bearing device which comprises an explosion bearing box and an ejection pressure sensor; the telescopic jacking...
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Main Authors | , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
10.05.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to the technical field of coal mining, and provides a rockburst early warning device and a using method, and the rockburst early warning device comprises an explosion bearing device which comprises an explosion bearing box and an ejection pressure sensor; the telescopic jacking column is arranged between the sample and the tunnel top plate in a manner that the telescopic length is adjustable; the hydraulic loading assembly and the telescopic jacking column are arranged at an interval, and a clamping space for a sample and an explosion bearing device is formed between the hydraulic loading assembly and the telescopic jacking column; the loading pressure sensor is used for detecting the stress borne by the sample; and a monitoring alarm. According to the rockburst early warning device provided by the invention, by simulating the concentrated stress state of the surrounding rock of the tunnel, using the in-situ stress of the tunnel as the loading stress, and monitoring the loading pressure |
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Bibliography: | Application Number: CN202311865800 |