Attenuation characteristic of stress-wave in load-bearing soft-rock under different impact loading
Year: 2025
Type: conference-paper
Abstract: To explore the wave development law affected by impact loading, taking the sandstone of a tunnel as the material, this paper analyzed its development characteristics. The results show that stress significantly affects the propagation of stress waves. The peak of the compressive wave gradually decreases, and its waveform remains similar throughout. The stress influences the frequency spectrum characteristic. The frequency spectrum value initially shows a stage response law. Under the same load environment, the main frequency has a significant peak, and there is no secondary main frequency. In the low-stress environment, the main-frequency attenuation rate has high dispersion, and the data generally decreases nonlinearly. With the increase of the load value, the attenuation rate slows down, showing a typical linear development trend. The findings are of great significance for exploring the deterioration mechanism of sedimentary rock.
Authors: Bin Zhi, Yongji Gao, Yinhao Sun, Yakang Qu
Institution: China Railway Construction Corporation (China)
Language: English
Topic: Rock Mechanics and Modeling
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4408038883