Novel Evaluation Method of 3D Joint Roughness Based on Random Field Theory
文献类型：期刊论文
| 作者 | Kang, Jingyu1,2; Fu, Xiaodong1,2; Tian, Ning1,2; Sheng, Qian1,2; Chen, Jian1,2,3; Ali, Nafees1,2,3 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 24期号:11页码:13 |
| 关键词 | 3D joint Roughness Random field Scales of fluctuation Sampling interval Normalization |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/IJGNAI.GMENG-9987 |
| 英文摘要 | The roughness of a joint has a significant influence on the physical and mechanical properties of rock mass, and it is a hot and challenging research topic to determine the joint roughness quickly and accurately. In this paper, based on the random field theory and the traditional roughness evaluation index Z2s, a novel three-dimensional (3D) joint roughness evaluation index named Z sigma , theta d is proposed. The novel index involves three parameters: the standard deviation (SD) and the scales of fluctuation (SOF) of elevation distribution, which are related to the joint shape, and the sampling interval (SI), which is determined by the sampling method. The 3D joint is generated by the random field method, and the variation of Z sigma , theta d with SD, SOF, and SI is investigated. The results show that the roughness of the 3D joint generated by the random field method has good robustness, with a maximum fluctuation error of 3.87%. The roughness increases linearly with the increase of SD and decreases exponentially with the increase of SOF and SI, and the fitting formula is obtained. On this basis, the normalization method of Z sigma , theta d is put forward to eliminate the influence of SI on roughness, and the validity of Z sigma , theta d is verified by the actual joint in the public database. Finally, the application prospect of this method in the preparation of joint specimens is discussed, and the corresponding 3D surfaces are given according to the 10 typical joint profiles provided by Barton. This paper contributes a quantitative roughness evaluation index and a method for generating the 3D joint, which can serve as a basis for model experiments and numerical calculations. |
| 资助项目 | National Natural Science Foundation of China[52179117] ; National Key R&D Program of China[2023YFC3081200] ; Youth Innovation Promotion Association CAS[2021325] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001313690100002 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42540]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Kang, Jingyu |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad, Pakistan |
| 推荐引用方式 GB/T 7714 | Kang, Jingyu,Fu, Xiaodong,Tian, Ning,et al. Novel Evaluation Method of 3D Joint Roughness Based on Random Field Theory[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2024,24(11):13. |
| APA | Kang, Jingyu,Fu, Xiaodong,Tian, Ning,Sheng, Qian,Chen, Jian,&Ali, Nafees.(2024).Novel Evaluation Method of 3D Joint Roughness Based on Random Field Theory.INTERNATIONAL JOURNAL OF GEOMECHANICS,24(11),13. |
| MLA | Kang, Jingyu,et al."Novel Evaluation Method of 3D Joint Roughness Based on Random Field Theory".INTERNATIONAL JOURNAL OF GEOMECHANICS 24.11(2024):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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