Application of New Type of Grating-Type Detachment Instrument in the Monitoring of Roadway Roof Plate
The stability of coal rock in the roadway directly affects the safety of the mine,and in order to reduce the occurrence of roof accidents,it is indispensable to carry out efficient and accurate monitoring of roof displacement.Based on the theory of fibre optic grating monitoring,the monitoring of the top plate surrounding rock in the intelligent working face of No.11 coal seam in Xizhu coal mine is carried out,and the technology of high-precision FBG grating-type off-loading instrument is introduced.After practice,it shows that the lenticular-type top plate detachment instrument has more efficient and accurate characteristics than the traditional monitoring method,and it has excellent practical effect and significance for ensuring the stability of the roadway.
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