Journal
MEASUREMENT
Volume 169, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2020.108520
Keywords
Vibration event; Peak particle velocity; Stress increment; Microseismic monitoring; Rock burst
Ask authors/readers for more resources
Peak particle velocity (PPV) is studied in this paper as the most basic parameter to connect with stress increment in vibration events, with focus on events in underground coal mines. Different types of events, such as whole mine (WM) event, working face (WF) event, and heading face (HF) event, are analyzed, with emphasis on the relationship between PPV, stress increment, and event magnitude for mechanism study and early warning of rock burst.
Peak particle velocity (PPV) is the most basic and direct parameter of vibration event to connect with stress increment, so they are studied in this paper through statistics and analysis. The vibration events in underground coal mine can be divided into whole mine (WM) event, working face (WF) event and heading face (HF) event, and the WM event normally has the lowest dominant frequency and maximum PPV. Rock burst may occur when PPV causes its corresponding stress increment to reach the triggering value, and PPV should be used as monitoring index, rather than the only adopted post-processing indicators like event energy. The study also discussed about the relationship between event magnitude and PPV and their caused stress increment, which has important reference significance for mechanism study and early warning of rock burst.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available