A multifrequency ultrasonic approach to extracting static modulus and damage characteristics of rock | |
Zhang, Yuliang2; Zhao, Gao-Feng2; Wei, Xindong2; Li, Haibo1 | |
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. |
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