Predicting the Accuracy and Applicability of Micro-Seismic Monitoring of Rock Burst in TBM Tunneling Using the Data from Two Case Studies in China

Rock burst in TBM construction will have a great influence on the construction safety and construction speed. At the same time, there are few practical projects using micro-seismic monitoring, and the accuracy of prediction is not satisfactory. Therefore, this paper was based on a large number of mi...

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Bibliographic Details
Published inSustainability Vol. 15; no. 5; p. 4232
Main Authors Yang, Yalei, Du, Lijie, Li, Qingwei, Zhao, Xiangbo, Zhang, Weifeng, Liu, Zhiyong
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2023
Subjects
Accuracy
Anniversaries
Boring machines
Casualties
Construction accidents & safety
Construction industry
Geology
Hydroelectric power
Monitoring
Monitoring systems
Prevention
Risk levels
Rockbursts
Rocks
Sustainability
Tunnel construction
China
Pakistan
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Summary:Rock burst in TBM construction will have a great influence on the construction safety and construction speed. At the same time, there are few practical projects using micro-seismic monitoring, and the accuracy of prediction is not satisfactory. Therefore, this paper was based on a large number of micro-seismic monitoring reports and data from two hard rock TBM projects in China. The actual rock burst situation was continuously tracked and recorded on site for comparison and verification. The accuracy of rock burst monitoring was statistically analyzed from the aspects of rock burst grade and location. The applicability was analyzed from the perspective of rock burst construction safety, advance rate, and prevention measures. It was concluded that the accuracy of micro-seismic monitoring increased with the increase in the rock burst risk level. The precision location of Grade I and Grade II rock burst could be realized basically, while Grade III rock burst prediction was relatively low. It is suggested that micro-seismic monitoring should be adopted when there are Grade I and II rock burst risks. The research results will have important guiding significance for the TBM construction of deep-buried tunnels in the future.
ISSN:2071-1050
2071-1050
DOI:10.3390/su15054232