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22 results on '"Hu, Yingguo"'

5. Discussion on the Discreteness of the Attenuation Parameters of the Peak Particle Velocity Induced by Blasting.

Author

Yang, Zhaowei, Hu, Yingguo, Liu, Meishan, Li, Peng, Yao, Erlei, and Ma, Chenyang

Subjects
*RAYLEIGH waves, *THEORY of wave motion, *SEISMIC wave studies, *SEISMIC waves, *BLASTING, *BLAST waves
Abstract

The research on the attenuation law of blasting vibration has become the foundation and precondition of the effective control of blasting vibration damage. Aiming at the characteristics of low frequency, low velocity, and strong amplitude of the R wave, an improved wave component separation method based on R wave suppression is proposed. Combined with the measured vibration signals of a field test, the attenuation parameters of different types of waves in the propagation process of blasting seismic waves are studied. The analysis results show that, in the process of blasting seismic wave propagation, the attenuation parameters of different types of waves are significantly different. With an increase in propagation distance, the proportion of the different types of waves will also change. The study of attenuation law with only coupled particle peak vibration velocity often showed high discreteness. The fitting correlation coefficient and prediction accuracy of peak vibration velocity without distinguishing wave modes are lower than those induced by the P wave or R wave alone, which should be attributed to the conversion of dominant wave modes in blasting vibration at different distances. [ABSTRACT FROM AUTHOR]

Published
2024
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17. Blasting Damage Depth in Layered Jointed Basalt before and after Grouting

Author

Zhao Gen, Qiling Zhang, Wu Xinxia, Hu Yingguo, and Li Ruize

Subjects
musculoskeletal diseases, Basalt, 021110 strategic, defence & security studies, hemic and lymphatic diseases, 0211 other engineering and technologies, Geotechnical engineering, 02 engineering and technology, Geotechnical Engineering and Engineering Geology, Joint (geology), Geology, 021101 geological & geomatics engineering, General Environmental Science, Rock blasting
Abstract

This paper compares blasting damage depth in layered jointed basalt before and after grouting. First, a method of determining blasting damage depth in layered jointed basalt is proposed, wi...

Published
2019

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