Associate Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Title of Paper:基于微震监测技术的岩爆预测机制研究
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Date of Publication:2022-10-10
Journal:岩石力学与工程学报
Affiliation of Author(s):建设工程学部
Volume:35
Issue:3
Page Number:470-483
ISSN No.:1000-6915
Abstract:The rock burst-prone tunnel section in Jinping II hydropower station was
studied using micro-seismic monitoring technology as a means of
monitoring and early warning of rock burst. The spatial and temporal
variations of mirco-seismic events and rock burst were revealed by
comparing the actual conditions and monitored micro-seismic results. The
relationships among the magnitude,frequency and energy for micro-seismic
events contour were revealed through the extraction of micro-seismic
monitoring events by the corresponding characteristics of rock damage
process. The four criterions of rock burst were presented based on 3S
principle in seismology to determine rock burst. The in-situ results of
the study showed that the regularity of the temporal, spatial and
intensity distribution of rock burst in deep tunnels existed.
Micro-seismic activities always occurred ahead of rock burst,while the
locations of them coincided with rock burst. The criterion of rock burst
can be used to make accurate early-warning,and provide evidence for rock
burst forcasting and micro-seismic monitoring early-warning.
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