Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Engineering
Interpretation Method Of High Density 3d Seismic Depth Domain Data In Coal Mining Districts, Meng Fanbin
Interpretation Method Of High Density 3d Seismic Depth Domain Data In Coal Mining Districts, Meng Fanbin
Coal Geology & Exploration
The development height of the water conducting fractured zone is one of the important technical parameters for mine water hazards prediction. In this paper, the combined well-surface microseismic monitoring technology was used to analyze the development characteristics of the water conducting fractured zone in working face 4103 in Wenjiapo coal mine. The results showed that for deep buried coal seams, the microseismic events occured in the advance mining face with advanced influence angle ranging from the minimum of 28° to the maximum of 35°. The stability of overburden decreased due to the faults. Thus, compared with normal bedrock, the overburden …
Development Characteristics Of Water-Conducting Fractured Zone In Deep Coal Seam Based On Microseismic Monitoring, Hou Enke, Fan Jichao, Xie Xiaoshen, Long Tianwen, Zhang Huanlan, Wang Jianhui, Fan Zhigang
Development Characteristics Of Water-Conducting Fractured Zone In Deep Coal Seam Based On Microseismic Monitoring, Hou Enke, Fan Jichao, Xie Xiaoshen, Long Tianwen, Zhang Huanlan, Wang Jianhui, Fan Zhigang
Coal Geology & Exploration
The development height of the water conducting fractured zone is one of the important technical parameters for mine water hazards prediction. In this paper, the combined well-surface microseismic monitoring technology was used to analyze the development characteristics of the water conducting fractured zone in working face 4103 in Wenjiapo coal mine. The results showed that for deep buried coal seams, the microseismic events occured in the advance mining face with advanced influence angle ranging from the minimum of 28° to the maximum of 35°. The stability of overburden decreased due to the faults. Thus, compared with normal bedrock, the overburden …
Application Of Mine-Hole Joint Microseismic Technology In Monitoring The Damage Depth Of Working Face Floor, Duan Jianhua, Yan Wenchao, Nan Hanchen, Zhang Qingqing, Fan Xin
Application Of Mine-Hole Joint Microseismic Technology In Monitoring The Damage Depth Of Working Face Floor, Duan Jianhua, Yan Wenchao, Nan Hanchen, Zhang Qingqing, Fan Xin
Coal Geology & Exploration
Accurate prediction of the mining damage depth of floor is a key problem in the prevention and control of mining floor water hazard especially in the case with confined water. It is very important for developing the strategy of water control. According to the geological characteristics and working face layout of Baode coal mine, Shaanxi Province, a high-precision microseismic monitoring system consisting of well and hole arrays was deployed to detect the floor damage depth in working face 81307 in real time. The velocity model was calibrated and the location accuracy was verified by hammering method. It is proved that …