A nonlinear creep model for surrounding rocks of tunnels based on kinetic energy theorem
文献类型：期刊论文
| 作者 | Liu, Wenbo1,2; Zhou, Hui1,2; Zhang, Shuguang3,4; Jiang, Shuai2; Yang, Liu1,2 |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 15期号:2页码:363 |
| 关键词 | Internal energy Kinetic energy theorem Perzyna viscoplastic theory Nishihara model Accelerated creep Initiating threshold |
| ISSN号 | 1674-7755 |
| 英文摘要 | The initiating condition for the accelerated creep of rocks has caused difficulty in analyzing the whole creep process. Moreover, the existing Nishihara model has evident shortcomings in describing the accelerated creep characteristics of the viscoplastic stage from the perspective of internal energy to analyze the mechanism of rock creep failure and determine the threshold of accelerated creep initiation. Based on the kinetic energy theorem, Perzyna viscoplastic theory, and the Nishihara model, a unified creep constitutive model that can describe the whole process of decaying creep, stable creep, and accelerated creep is established. Results reveal that the energy consumption and creep damage in the process of creep loading mainly come from the internal energy changes of geotechnical materials. The established creep model can not only describe the viscoelasticeplastic creep characteristics of rock, but also reflect the relationship between rock energy and creep deformation change. In addition, the research results provide a new method for determining the critical point of creep deformation and a new idea for studying the creep model and creep mechanical properties. (c) 2023 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000950190400007 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35306]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing, 100049, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China 3.Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin, 541004, China 4.School of Civil Engineering Guilin, University of Technology, Guilin, 541004, China |
| 推荐引用方式 GB/T 7714 | Liu, Wenbo,Zhou, Hui,Zhang, Shuguang,et al. A nonlinear creep model for surrounding rocks of tunnels based on kinetic energy theorem[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2023,15(2):363. |
| APA | Liu, Wenbo,Zhou, Hui,Zhang, Shuguang,Jiang, Shuai,&Yang, Liu.(2023).A nonlinear creep model for surrounding rocks of tunnels based on kinetic energy theorem.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,15(2),363. |
| MLA | Liu, Wenbo,et al."A nonlinear creep model for surrounding rocks of tunnels based on kinetic energy theorem".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 15.2(2023):363. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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