A Study on Micro-Seismic Monitoring of Rock Failure during the Excavation of Tunnel
Yuan yanghui tunnel as the engineering background of this study, the layout of USTB micro-seismic monitoring system is introduced. The positioning accuracy of the system has been adjusted according to artificial fixed blasting tests. Combining with the relationship between activity rate and time of micro-seismic events, different types of micro-seismic events have been distinguished, which explain the emergence of those events. The results show that the design and implementation of micro-seismic monitoring system can meet the global monitoring of rock mass deformation during the construction of the tunnel. Imported with location condition, combining micro-seismic monitoring with conventional monitoring technique can find the concentration zone of rock failure more exactly and orientate the position of potential instable face, which has considerable engineering guiding significance and economic benefit.
Chunliang Zhang and Paul P. Lin
D. D. Ding and S. C. Wu, "A Study on Micro-Seismic Monitoring of Rock Failure during the Excavation of Tunnel", Applied Mechanics and Materials, Vols. 226-228, pp. 1476-1480, 2012