Seismic Wave Attenuation Analysis in Passive Seismic Safety Monitoring
The traditional micro-seismic safety monitoring is to study the characteristics of rock fracture signals, while ignoring other types of signals. However, a variety of interdisciplinary studies show that other signals contain a lot of useful information. The paper discusses passive seismic safety monitoring technology is to study the evolution law of underground surrounding rock fissures by studying the attenuation characteristics of seismic wave propagation. The experimental results and field tests show that the energy and frequency attenuation and its attenuation gradient in the study of seismic wave attenuation characteristics can effectively reflect the structural changes of underground surrounding rock, which has important scientific research and practical value for the structural analysis of underground engineering surrounding rock and the safety monitoring of underground engineering.