Application of Channel Wave Exploration Technology in Broken Zone Detecting of Roadway Roof
In order to further explore the fractured state of the roof rock of the ZF3806 working face in Shuiliandong Coal Mine,Shaanxi Province,and guide the strengthening of support during the mining period,ultrasonic wave velocity measurement is carried out on the coal seam and its roof and floor rocks of the working face.Slot wave seismic exploration technology is used to conduct transmission slot wave detection on the working face.The research results indicate that there is a significant difference in wave velocity between the 4th coal seam and its roof and floor rock layers,providing a physical basis for trough wave exploration.Transmission slot wave CT imaging interprets 6 abnormal areas of slot wave energy.It is speculated that these abnormal areas have high fragmentation and well-developed fractures.It is recommended to strengthen support for the roof of the abnormal areas during the mining process of the working face to ensure safe mining.
万方数据
维普
