Ultrasonic properties and damage expression of frozen soil-rock mixture with various block conditions
文献类型：期刊论文
| 作者 | Wang, Shuangjiao2,3,4; Li, Zhiqing2,3,4; Gao, Zhiao1,3; Zhou, Yingxin5; Hu, Ruilin2,3,4 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 83期号:12页码:16 |
| 关键词 | Frozen soil-rock mixture (FSRM) Block size Gradation Ultrasonic wave velocity First wave amplitude |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-024-11684-1 |
| 英文摘要 | The variation of ultrasonic parameters is closely linked to the mechanical properties and damage evolution of rock and soil mass. In this paper, uniaxial compression tests and real-time ultrasonic monitoring technology were used to explore the strength, deformation and damage characteristics of frozen soil-rock mixture (FSRM) with different block sizes and gradations, as well as the law of ultrasonic wave propagation. The results indicate that: (1) A wider gradation of rock blocks corresponds to a higher specimen strength and a lower breakage degree of rock blocks. Within the same gradation, specimens with smaller block sizes have higher strength. Wider gradation and smaller particle size of rock blocks exerts a delayed effect on damage and failure of FSRM. (2) The particle size of rock blocks plays a key role in the variation of ultrasonic parameters. Within the same gradation, the specimens with larger block sizes possess higher wave velocity and lower first wave amplitude. The effect of gradation on ultrasonic parameters is attributed to the variation of block size. (3) With the first wave amplitude as damage state variable, a damage prediction model based on the improved Duncan-Chang model is established, demonstrating superior prediction potential on the stress-strain curves of FSRM. The research confirms and promotes the quantitative correlation between ultrasonic parameters and mechanical properties of geotechnical materials, which may provide theoretical support for testing and evaluating the mechanical properties of roadbed filling in cold mountainous areas. |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; National Natural Science Foundation of China[42177146] ; Key Research and Development Plan of Yunnan Province[202103AA080013] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001236274300001 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41568]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Zhiqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 5.Yunnan Commun Investment & Construction Grp Co Ltd, Kunming 650100, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shuangjiao,Li, Zhiqing,Gao, Zhiao,et al. Ultrasonic properties and damage expression of frozen soil-rock mixture with various block conditions[J]. ENVIRONMENTAL EARTH SCIENCES,2024,83(12):16. |
| APA | Wang, Shuangjiao,Li, Zhiqing,Gao, Zhiao,Zhou, Yingxin,&Hu, Ruilin.(2024).Ultrasonic properties and damage expression of frozen soil-rock mixture with various block conditions.ENVIRONMENTAL EARTH SCIENCES,83(12),16. |
| MLA | Wang, Shuangjiao,et al."Ultrasonic properties and damage expression of frozen soil-rock mixture with various block conditions".ENVIRONMENTAL EARTH SCIENCES 83.12(2024):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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