The effect of displacement loading rate on dynamic mechanical characteristics of fault stick-slip under constant normal stiffness conditions
文献类型：期刊论文
| 作者 | Zhang, Chuanqing5,6; Zhang, Luosong5,6; Tao, Zhigang3,4; Xie, Qiming5,6; Zhou, Aoge2; Cui, Guojian1 |
| 刊名 | GEOPHYSICS
 |
| 出版日期 | 2025 |
| 卷号 | 90期号:1页码:L1-L19 |
| ISSN号 | 0016-8033 |
| DOI | 10.1190/GEO2024-0069.1 |
| 英文摘要 | The role of the displacement loading rate in fault activation and evolution is of utmost importance, yet most existing studies have primarily focused on its effect under constant normal load (CNL) conditions. However, in reality, the rock mass surrounding the earthquake source at the deep part of the fault provides normal stiffness conditions. Therefore, the influence of the displacement loading rate on the dynamic mechanical characteristics of fault stick-slip under constant normal stiffness (CNS) conditions remains uncertain. To bridge this research gap, we conduct an experimental investigation on simulated faults in granite under CNS conditions. Our analysis focus on the influence of the displacement loading rate on the spatial and temporal evolution of local stresses along the fault and the size of the fault nucleation zone. The findings reveal the following. Under the CNS condition, the equivalent shear stress is larger compared with the CNL condition, whereas the shear stress drop is smaller. The recovery of normal stress under CNS conditions depends more on the displacement loading rate. The nucleation location of the fault is influenced by the normal boundary conditions, with a larger nucleation zone observed in the CNS condition than in the CNL condition. In the early stage of friction, the local stress and stress drop of the fault exhibit a positive correlation with the displacement loading rate, whereas in the later stage, they display a negative correlation. Moreover, at the same location, the order of local stress drop rates for the fault is v(3) > v(1) > v(2), where v(1) represents the local normal stress drop rate, v(2 )represents the local shear stress drop rate, and v(3) represents the local friction coefficient drop rate. These research results contribute to a further understanding of the deep fault- slip mechanical behavior. |
| 资助项目 | National Natural Science Founda-tion of China[52109142] ; National Natural Science Foundation of China[52279116] ; Key projects of the Yalong River Joint Fund of the National Natural Science Foun-dation of China[U1865203] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001438714300001 |
| 出版者 | SOC EXPLORATION GEOPHYSICISTS - SEG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36864]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Luosong |
| 作者单位 | 1.Eastern Inst Adv Study, Coll Engn, Ningbo, Peoples R China 2.Guilin Univ Technol, Sch Civil & Architectural Engn, Guilin, Peoples R China 3.China Univ Min & Technol, Sch Mech & Civil Engn, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China 6.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chuanqing,Zhang, Luosong,Tao, Zhigang,et al. The effect of displacement loading rate on dynamic mechanical characteristics of fault stick-slip under constant normal stiffness conditions[J]. GEOPHYSICS,2025,90(1):L1-L19. |
| APA | Zhang, Chuanqing,Zhang, Luosong,Tao, Zhigang,Xie, Qiming,Zhou, Aoge,&Cui, Guojian.(2025).The effect of displacement loading rate on dynamic mechanical characteristics of fault stick-slip under constant normal stiffness conditions.GEOPHYSICS,90(1),L1-L19. |
| MLA | Zhang, Chuanqing,et al."The effect of displacement loading rate on dynamic mechanical characteristics of fault stick-slip under constant normal stiffness conditions".GEOPHYSICS 90.1(2025):L1-L19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。