Experimental Measurements of Explosion Effects Propagating in the Real Geological Environment—Correlation with Small-Scale Model

• Published in: Buildings (Basel) 2024-11, Vol.14 (11), p.3603
• Main Authors: Papán, Daniel, Brozová, Emma, Papánová, Zuzana
• Format: Article
• Language: English
• Subjects: Accelerometers; Accuracy; attenuation; Attenuation coefficients; Calibration; Cooperation; Correlation; Design; dynamic scaling; Explosions; Explosives; Fireworks; Fourier transforms; Geology; Measurement; Measurement methods; Nitrates; Numerical analysis; P waves; Potassium; Recording equipment; Scale models; Scaling; Scaling factors; Seismic response; Seismic waves; Statistical models; Task complexity; technical seismicity; Wave propagation
• ISSN: 2075-5309; 2075-5309
• DOI: 10.3390/buildings14113603

This research focuses on comparing small-scale and full-scale measurements of wave propagation from explosions by using scaling relationships to find significant correlations between the two. The study investigates how seismic waves generated by explosions behave in the geological environment. The research covers various aspects such as the development of the model, the explosive materials used, measurement methods, evaluation techniques, and relevant software. A scientific approach based on the principle of backward Fourier transform was used to process and evaluate the data, which helps to filter the frequencies. One of the important calculations discussed is the determination of the attenuation coefficient, which helps to describe how waves attenuate as they pass through a material. The research also deals with dynamic scaling, using the dynamic exponent as a scaling factor to provide a better understanding of the behavior of waves at different scales. By comparing real in situ data with results from small-scale models, the study provides a robust framework for predicting the effects of explosions in complex geological environments. The research results show a high correlation coherence of the statistical data files of up to 4.1%. For dynamic tasks and model scaling, an important result can be pointed out, namely the approximately fourfold decrease in the exponents of the dependence on the distance from the excitation source and the amplitudes between P-waves (0.4316) and R-waves (0.1219). Conclusions are targeted at the possibility of correlating three types of results: small-scale simulations, numerical simulations, and a real full-scale experiment.