A review of advances and applications of key technologies for microseismic monitoring of engineering rock mass hazards
Yang Shihan1,Li Biao2*,Mao Haoyu1,Ye Tianzhu2
(1.State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resources and Hydropower, Sichuan University, Chengdu 610065, Sichuan, China;
2.School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, Sichuan, China)
Abstract: Microseismic monitoring uses sensor arrays to record elastic wave signals generated by rock fracturing and characterizes fracture activity and damage evolution in rock masses through event detection, source location, and source parameter inversion. In engineering settings such as deeply buried tunnels, large underground caverns, and high and steep slopes, monitoring results are often affected by site noise and velocity model uncertainties; the selection of warning indicators and the determination of thresholds are strongly site-dependent, and the physical interpretability of some methods remains limited. In this review, three key technical aspects of microseismic monitoring for engineering rock mass hazards were examined: signal processing, source mechanism analysis and parameter systems, and early warning and engineering applications. Representative studies were summarized through a literature review and comparative analysis of typical engineering cases. In terms of microseismic signal processing, key procedures including denoising, event identification, and source location were analyzed, and the applicability of representative methods was discussed. In terms of source mechanism analysis and parameter systems, source mechanism characterization based on moment tensor inversion was described, calculation methods for common source parameters were summarized, and damage-oriented parameter updating strategies were discussed. In terms of early warning and engineering applications, static thresholds, trend-based criteria, and joint strategies involving multiple parameters were reviewed, and the integration of spatiotemporal structures of event clusters, mechanism evolution, field observations, and numerical simulation validation was emphasized to improve warning reliability. The review showed that effective microseismic monitoring of engineering rock masses depended on improving signal quality and source location reliability, strengthening the interpretation of source mechanisms and source parameters, and jointly assessing anomalies in multiple parameters, event spatiotemporal clustering, and site engineering conditions. These integrated analyses provided a basis for hazard mechanism interpretation and instability warning.
杨适菡, 李彪, 毛浩宇, 叶天柱. 工程岩体灾害微震监测关键技术发展与应用综述[J]. 隧道与地下工程灾害防治, .
Yang Shihan, Li Biao, Mao Haoyu, Ye Tianzhu. A review of advances and applications of key technologies for microseismic monitoring of engineering rock mass hazards. Hazard Control in Tunnelling and Underground Engineering, 0, (): 1-33.
