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Paper Publications

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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