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Microseismic/acoustic emission sources localization method using improved search algorithm for multiple media and irregular complex structures
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AI
DOI：10.1016/j.measurement.2025.117034.png)
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摘要
En 中文
Materials and engineering geological environments often present complex media and unique structures, complicating source localization due to diverse and nonlinear velocity models. This paper proposes a microseismic/acoustic emission (MS/AE) source localization method, termed ISACE-GPU, which utilizes an improved A* algorithm and GPU acceleration. The method first enables effective ray path searching for multi-media and irregular structures through the improved A* algorithm. Next, an optimized GPU parallel acceleration framework boosts localization efficiency. Finally, equidistant grid modeling meets diverse environmental needs. The results indicate that this method achieves relative localization errors of 2.5 % and 3.58 % of the monitoring network accuracy in simulations and mining applications, respectively, and improves localization accuracy by up to 92.5 % and 28.11 % compared to the microseismic source location method without the pre-measuredwave velocity (MSLM-WV). Under appropriate grid node calculations, it reduces memory usage and increases computational speed by 27 times. The proposed method is suitable for seismic source localization in complex, large-scale environments, ensuring high accuracy and efficiency.
Keyword:
Acoustic emission
Microseismic
Source localization
Multiple media
Irregular structure
期刊
IF:
5.6
论文数:
2.0W
被引数:
5.4W
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