A multifrequency ultrasonic approach to extracting static modulus and damage characteristics of rock

doi:10.1016/j.ijrmms.2021.104925

	A multifrequency ultrasonic approach to extracting static modulus and damage characteristics of rock
	Zhang, Yuliang 2; Zhao, Gao-Feng 2; Wei, Xindong 2; Li, Haibo 1
刊名	INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
	2021-12-01
卷号	148 页码:16
关键词	Ultrasonic Static modulus Dynamic modulus Thermal damage Wave velocity Lattice spring model
ISSN号	1365-1609
DOI	10.1016/j.ijrmms.2021.104925
英文摘要	Understanding the mechanical behavior of rock is a fundamental requirement for many geological explorations. Based on the frequency dependence of primary and shear wave velocities (P-and S-wave velocities), this work proposed a new approach to obtaining the static modulus of rocks without using empirical correlations. Six group granite specimens are treated by different temperatures, then the P-and S-wave velocities of these specimens at various frequencies were tested. The static moduli of all the specimens were calculated by deriving the newly proposed critical P-and S-wave velocities with a classical formula. The results showed that the static moduli of all the specimens obtained from the ultrasonic approach complied with the initial modulus obtained from uni -axial compression tests, demonstrating the reasonability of the proposed ultrasonic approach. The reasonability of the proposed approach was further proven by using a distinct lattice spring model. Numerical results showed that the calculated modulus is consistent with the true value. In addition, the standard deviation of wave ve-locities at different frequencies was adopted to describe the damage characteristics in rock, which well explained the change in damage variable during the thermal process. The proposed approach provides a potential method to fast obtain the static modulus and damage characteristics of rock.
资助项目	National Natural Sci-ence Foundation of China[51979187] ; Natural Science Foundation of Tianjin, China[19JCZDJC39400]
WOS研究方向	Engineering ; Mining & Mineral Processing
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000710688600002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28376]
专题	中科院武汉岩土力学所
通讯作者	Zhao, Gao-Feng
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Tianjin Univ, Sch Civil Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300354, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yuliang,Zhao, Gao-Feng,Wei, Xindong,et al. A multifrequency ultrasonic approach to extracting static modulus and damage characteristics of rock[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2021,148:16.
APA	Zhang, Yuliang,Zhao, Gao-Feng,Wei, Xindong,&Li, Haibo.(2021).A multifrequency ultrasonic approach to extracting static modulus and damage characteristics of rock.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,148,16.
MLA	Zhang, Yuliang,et al."A multifrequency ultrasonic approach to extracting static modulus and damage characteristics of rock".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 148(2021):16.