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Scale model test study of influence of joints on blasting vibration attenuation

文献类型：期刊论文

作者Yu, Chong1,2; Yue, Haozhen1,2; Li, Haibo1,2; Xia, Xiang1,2; Liu, Bo1,2
刊名BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
出版日期2020-08-05
页码18
关键词Blasting vibration Jointed rock masses Model test Attenuation law Energy distribution
ISSN号1435-9529
DOI10.1007/s10064-020-01944-2
英文摘要Ground vibrations are an integral part of the process of rock blasting. The analysis of blasting vibration attenuation is the basis for a blasting risk assessment. To study the influence of rock joints on the blasting vibration attenuation, an autoclaved aerated concrete block was used as a similar material of rock in model tests of blasting vibration propagation. The attenuation process of the blasting vibration was physically simulated. The attenuation behaviors of the blasting vibrations in different directions to joint strike were fitted. Additionally, a positive correlation between the attenuation parameters and the directions was obtained. Furthermore, the Hilbert-Huang transform (HHT) based on the complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) was used to analyze the vibration velocity signals. The characteristics and variation of the energy distribution were studied in the time-frequency domain. The results showed that the energy amplitude decreased as the propagation distance increased. The energy distribution gradually evolved from concentrated to discrete in the frequency domain. The low-frequency components were always present in the velocity signals at each measurement point, but the high-frequency components constantly changed due to the reflection and transmission of the waves after encountering the joint surfaces. The results of this study provide a reference for the prediction and control of the blasting vibration effect in jointed rock masses.
资助项目National Nature Science Foundation of China[51439008] ; National Nature Science Foundation of China[41302239] ; National Nature Science Foundation of China[41672311] ; National Nature Science Foundation of China[41525009] ; National Nature Science Foundation of China[51779248]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000556163200001
出版者SPRINGER HEIDELBERG
源URL[http://119.78.100.198/handle/2S6PX9GI/24609]  
专题中科院武汉岩土力学所
通讯作者Yu, Chong
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Chong,Yue, Haozhen,Li, Haibo,et al. Scale model test study of influence of joints on blasting vibration attenuation[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020:18.
APA Yu, Chong,Yue, Haozhen,Li, Haibo,Xia, Xiang,&Liu, Bo.(2020).Scale model test study of influence of joints on blasting vibration attenuation.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,18.
MLA Yu, Chong,et al."Scale model test study of influence of joints on blasting vibration attenuation".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020):18.

入库方式： OAI收割

来源：武汉岩土力学研究所

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