Knowledge Management System of Institute of Rock and Soil Mechanics,CAS
| Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress | |
| Hu, Shanchao; Tan, Yunliang; Zhou, Hui; Ru, Wenkai; Ning, Jianguo; Wang, Jun; Huang, Dongmei; Li, Zhen | |
| 2020 | |
| Source Publication | ENERGY SCIENCE & ENGINEERING
 |
| ISSN | 2050-0505 |
| Volume | 8Issue:3Pages:789-803 |
| Abstract | Layered rocks exhibit notable transverse isotropy and have a significant impact on the deformation and failure characteristics of underground structures. To a large extent, the mechanical properties of layered rocks are related to the structure and stress state of their bedding planes. To obtain an in-depth understanding of the deformation and yield characteristics of layered rocks, a mechanical model for layered rocks incorporating planes of weakness and volumetric stress is proposed by improving the strain-hardening/softening ubiquitous-joint model based on continuum mechanics methods. In this mechanical model, elastoplastic equations for the matrix and bedding planes of layered rocks are established. The evolution of the mechanical parameters of the matrix and bedding planes of layered rocks with the internal variable is determined. In addition, the sensitivity of the model parameters is analyzed, and a method for determining the parameters is provided to reduce the complexity in obtaining these parameters. The numerical calculation results for the laboratory tests on layered sandstone specimens under various stress levels agree relatively well with the test results, thereby validating the effectiveness of the improved model. The methods and results of this study provide a significant reference for the analysis of the deformation and failure of other layered rocks. |
| Keyword | anisotropy mechanical model plastic internal variable sensitivity analysis volumetric stress |
| DOI | 10.1002/ese3.551 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Energy & Fuels |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:000498326300001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://119.78.100.198/handle/2S6PX9GI/14822 |
| Collection | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| Affiliation | 1.Shandong Univ Sci & Technol, Shandong Prov & Minist Sci & Technol, State Key Lab Min Disaster Prevent & Control, 579 Qianwangang Rd, Qingdao, Shandong, Peoples R China; 2.China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Xuzhou, Peoples R China; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China; 4.Henan Polytech Univ, Sch Civil Engn, Jiaozuo, Peoples R China |
| Recommended Citation GB/T 7714 | Hu, Shanchao,Tan, Yunliang,Zhou, Hui,et al. Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress[J]. ENERGY SCIENCE & ENGINEERING,2020,8(3):789-803. |
| APA | Hu, Shanchao.,Tan, Yunliang.,Zhou, Hui.,Ru, Wenkai.,Ning, Jianguo.,...&Li, Zhen.(2020).Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress.ENERGY SCIENCE & ENGINEERING,8(3),789-803. |
| MLA | Hu, Shanchao,et al."Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress".ENERGY SCIENCE & ENGINEERING 8.3(2020):789-803. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| ese3.551.pdf（3809KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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