Application of Distributed Acoustic Sensing for Active Near-Surface Seismic Monitoring

Sensors, Год журнала: 2025, Номер 25(5), С. 1558 - 1558

Опубликована: Март 3, 2025

High-resolution imaging of the near-surface structures critical objects is necessary in various applications including geohazard studies, structural health artificial structures, and generally environmental seismology. This study explores use fiber optic sensor technology active seismic surveys to monitor embankment structure Rybnik Reservoir Poland. We discuss technical aspects, types energy sources, provide a comparison data collected with standard geophone-based survey conducted simultaneously. A thorough processing methodology presented directly compare both datasets. The results show comparable quality, DAS offering significant advantages terms spatial temporal resolution, facilitating more accurate interpretations. demonstrates its ability operate effectively complex geological environments, such as areas high noise, rough terrain, variable surface conditions, making it highly adaptable for monitoring infrastructure. Additionally, provides long-term capabilities, essential ongoing assessments detection. For example, multichannel analysis waves (MASW) using clearly identifies S-wave velocities down 13 m an RMS error 3.26%, compared 6.2% geophone data. Moreover, DAS-based were easier process interpret. integration traditional can comprehensive understanding subsurface properties, reliable geophysical over time. innovative approach particularly valuable challenging underscoring importance

Язык: Английский

Probabilistic inversion of shear wave velocity profile based on the dispersion curve from multichannel analysis of surface waves and inequality constraints on layer thicknesses

Engineering Geology, Год журнала: 2025, Номер unknown, С. 108063 - 108063

Опубликована: Апрель 1, 2025

Язык: Английский

Seismic and environmental controls on slow-moving landslides: Insights from the 2008 Wenchuan Earthquake

Engineering Geology, Год журнала: 2024, Номер 344, С. 107865 - 107865

Опубликована: Дек. 10, 2024

Язык: Английский