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Experimental study on creep characteristics of electrolyte-bearing salt rock under long-term triaxial cyclic loading

文献类型：期刊论文

作者Huang, Si1,6; Lu, Jun7; Wang, Jian7; Fu, Xinghui2; Fu, Yaping7; Li, Yinping1,3,6; Shi, Xilin1,6; Dong, Zhikai4; Zhao, Kai1,6; Li, Peng1,6
刊名FRONTIERS IN EARTH SCIENCE
出版日期2024-11-20
卷号12页码:13
关键词salt rock creep characteristics triaxial cyclic loading elastic modulus stress-strain curve
DOI10.3389/feart.2024.1503158
英文摘要During the operation of the Salt Cavern Flow Battery (SCFB) system, the rock surrounding a salt cavern is subjected to erosion by the electrolyte. To study the creep characteristics of electrolyte-bearing salt rock under long-term triaxial cyclic loading in SCFB, a triaxial creep experiment with a cycle period of 1 day was conducted. The results indicated that, when not subjected to failure, the axial stress-strain curve of electrolyte-bearing sample undergoes only two phases of "sparse-dense", entering dense phase approximately 4 cycles earlier than that of sample without electrolyte. Under the same stress conditions, the strain generated in electrolyte-bearing salt rock surpasses that of sample without electrolyte, demonstrating an initial rapid increase followed by a gradual stabilization trend. The stress-strain curve of electrolyte-bearing sample in a single cycle can be divided into six stages. The number of cycles has almost no effect on the axial strain in stages I, IV, V and VI, and the axial strain in stages IV and VI is basically 0. Additionally, the elastic deformation generated in stage I is basically recovered in stage V. The strain in stage II gradually decreases and disappears in the 4th cycle, which is 13 cycles earlier than that of the sample without electrolyte. The creep rate of electrolyte-bearing sample shows a trend of "gradual decrease-basically stabilization" as the number of cycles increases, and the creep experiment contains only the decay creep stage and steady creep stage. Irreversible deformation of electrolyte-bearing sample exhibits a gradual decrease followed by stabilization with increasing number of cycles. The research findings hold significant implications for the stability analysis of SCFB systems.
资助项目Excellent Young Scientists Fund Program of National Natural Science Foundation of China[52122403] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[Y2023089] ; National Natural Science Foundation of China[52374069] ; National Natural Science Foundation of China[52304069] ; National Natural Science Foundation of China[52304070] ; National Natural Science Foundation of China[52208342] ; Jiangxi Provincial Natural Science Foundation[20242ACB214008] ; Jiangxi Provincial Natural Science Foundation[20232BAB204072]
WOS研究方向Geology
语种英语
WOS记录号WOS:001369394200001
出版者FRONTIERS MEDIA SA
源URL[http://119.78.100.198/handle/2S6PX9GI/43375]  
专题中科院武汉岩土力学所
通讯作者Shi, Xilin
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Jiangsu Suyan Jingshen Co Ltd, Huaian, Peoples R China
3.Chinese Acad Sci, Inst Rock & Soil Mech, Hubei Key Lab Geoenvironm Engn, Wuhan, Peoples R China
4.Shijiazhuang Tiedao Univ, Sch Safety Engn & Emergency Management, Shijiazhuang, Peoples R China
5.East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang, Peoples R China
6.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China
7.PipeChina Energy Storage Technol Co Ltd, Shanghai, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Si,Lu, Jun,Wang, Jian,et al. Experimental study on creep characteristics of electrolyte-bearing salt rock under long-term triaxial cyclic loading[J]. FRONTIERS IN EARTH SCIENCE,2024,12:13.
APA Huang, Si.,Lu, Jun.,Wang, Jian.,Fu, Xinghui.,Fu, Yaping.,...&Chen, Xiangsheng.(2024).Experimental study on creep characteristics of electrolyte-bearing salt rock under long-term triaxial cyclic loading.FRONTIERS IN EARTH SCIENCE,12,13.
MLA Huang, Si,et al."Experimental study on creep characteristics of electrolyte-bearing salt rock under long-term triaxial cyclic loading".FRONTIERS IN EARTH SCIENCE 12(2024):13.

入库方式： OAI收割

来源：武汉岩土力学研究所

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