Rockburst and microseismicity characteristics in the Qinling water conveyance tunnel of the Hanjiang-to-Weihe River Diversion Project

The Qinling water conveyance tunnel of the Hanjiang-to-Weihe River Diversion Project is the first one to overgo the Qinling Mountains with the maximum burial depth of about 2000 m, and the project is seriously threatened by rockburst hazards. The microseismic monitoring technique capable of capturing microcracking and estimating damage of rock, was employed to monitor and predict rockbursts in the deep tunnel. To study the rockburst...