A quantitative description method for the mechanical behavior of soil-rock mixture as affected by water content
文献类型：期刊论文
| 作者 | Du, Yuxiang1,2,3; Fu, Xiaodong2,4; Sheng, Qian4; Zhang, Zhenping5; Du, Wenjie4,6; Ding, Haifeng4,6; Liu, Tingting3,7 |
| 刊名 | FRONTIERS IN ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2023-09-07 |
| 卷号 | 11页码:14 |
| 关键词 | soil-rock mixture water content large triaxial tests mechanical behavior Duncan-Chang model |
| ISSN号 | 2296-701X |
| DOI | 10.3389/fevo.2023.1249657 |
| 英文摘要 | The mechanical properties of soil rock mixture (S-RM) are complex, especially the strength deterioration after encountering water, which readily leads to engineering instability. A series of large triaxial tests of S-RM with different water contents under various confining pressures were performed, the mechanical properties of S-RM were explored from a macroscopic perspective. The constitutive model of S-RM - an extended Duncan-Chang (DC) model considering water content - was developed. The results show that: (a) the stress-strain curves of S-RM are strain hardening type, the peak strength decreases non-linearly with the increase of water content, the higher the water content of sample, the more significant the bulging phenomenon and the more numerous and extensive the surface cracks; (b) the cohesion c and internal friction angle & phi; of S-RM both decrease approximately linearly with the increase of water content, and the secant modulus decreases significantly with the increase of water content, the reason of which can be attributed to the porosity and compression characteristics of S-RM; (c) the extended DC model can be used to describe the mechanical behavior of S-RM affected by water under triaxial test conditions. The material constant K, failure ratio Rf, c, and & phi; are all related to water content & omega;, while material constant n is independent, only & omega;, n, maximum principal stress & sigma;1, and minimum principal stress & sigma;3 are needed to determine the tangent modulus of the DC model of S-RM. The results can provide an experimental basis and mechanical understanding applicable to engineering practice in an S-RM formation. |
| 资助项目 | Natural Science Foundation of Hubei Province, China[2022CFB874] ; National Natural Science Foundation of China[52209131] ; National Natural Science Foundation of China[52179117] ; Youth Innovation Promotion Association CAS[2021325] ; Scientific Research Project of Hubei Education Department[B2022282] ; Wuhan Knowledge innovation special project[2023020201020444] ; Open Research Fund of Hubei Key Laboratory of Blasting Engineering[HKLBEF202006] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001067689200001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39479]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Fu, Xiaodong |
| 作者单位 | 1.Jianghan Univ, Hubei Wuhan Inst Explos Sci & Blasting Technol, Wuhan, Peoples R China 2.Jianghan Univ, State Key Lab Precis Blasting, Wuhan, Peoples R China 3.Jianghan Univ, Hubei Key Lab Blasting Engn, Wuhan, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 5.Shenyang Univ Technol, Sch Architecture & Civil Engn, Shenyang 110870, Liaoning, Peoples R China 6.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 7.Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Yuxiang,Fu, Xiaodong,Sheng, Qian,et al. A quantitative description method for the mechanical behavior of soil-rock mixture as affected by water content[J]. FRONTIERS IN ECOLOGY AND EVOLUTION,2023,11:14. |
| APA | Du, Yuxiang.,Fu, Xiaodong.,Sheng, Qian.,Zhang, Zhenping.,Du, Wenjie.,...&Liu, Tingting.(2023).A quantitative description method for the mechanical behavior of soil-rock mixture as affected by water content.FRONTIERS IN ECOLOGY AND EVOLUTION,11,14. |
| MLA | Du, Yuxiang,et al."A quantitative description method for the mechanical behavior of soil-rock mixture as affected by water content".FRONTIERS IN ECOLOGY AND EVOLUTION 11(2023):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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