Experimental Study on the Influence of Temperature on Rock Salt Creep
文献类型：期刊论文
| 作者 | Dong, Zhikai3,4; Li, Yinping3,4,6; Li, Haoran5; Wang, Ziheng5; Shi, Xilin1,3,4; Chen, Xiangsheng2; Lu, Qingfeng1 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2023-05-01 |
| 卷号 | 56期号:5页码:3499 |
| 关键词 | Rock salt Temperature Creep properties Microcracks Acoustic emission |
| ISSN号 | 0723-2632 |
| 英文摘要 | Constructing salt cavern gas storage in the ultra-deep strata more than 2000 m in depth is an important strategic technologic development in China. A primary issue is that higher temperature affects the creep behaviors of the surrounding rock. In this paper, triaxial creep tests of rock salt under multi-stage temperatures were carried out to study the influence of temperature on the creep behaviors of rock salt. Synchronous acoustic emission monitoring was performed throughout the creep test to study the microcracks characteristics of rock salt during creep at different temperatures. The results show that the duration of transient creep decreases with the increase of temperature. The steady-state creep rate increases with the increase of temperature. Temperature rise prompts the creep of rock salt to enter the volume dilatation stage. By analyzing the acoustic emission energy/counts, it is found that the microcracks generated during the creep at high temperature are few, but there are more at low temperature. Microcracks are generated intensively during rising temperatures. By analyzing the characteristics of the acoustic emission spectrum, it is found that when the temperature is low, the cracks generated are mainly intergranular cracks with a larger size, and they are mainly intragranular cracks with a smaller size when the temperature is high. The research in this paper is helpful to further understand the creep properties of ultra-deep rock salt and provides an important basis for the design, construction, and operation of gas storage salt caverns. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000923987500001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35450]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Jiangsu Suyan Jingshen Co.,Ltd., Huaian 223200, Jiangsu, China 2.State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang 330013, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 4.University of Chinese Academy of Sciences, Beijing 100049, China 5.Shijiazhuang Tiedao University, Shijiazhuang 050043, China 6.Hubei Key Laboratory of Geo-Environmental Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
| 推荐引用方式 GB/T 7714 | Dong, Zhikai,Li, Yinping,Li, Haoran,et al. Experimental Study on the Influence of Temperature on Rock Salt Creep[J]. ROCK MECHANICS AND ROCK ENGINEERING,2023,56(5):3499. |
| APA | Dong, Zhikai.,Li, Yinping.,Li, Haoran.,Wang, Ziheng.,Shi, Xilin.,...&Lu, Qingfeng.(2023).Experimental Study on the Influence of Temperature on Rock Salt Creep.ROCK MECHANICS AND ROCK ENGINEERING,56(5),3499. |
| MLA | Dong, Zhikai,et al."Experimental Study on the Influence of Temperature on Rock Salt Creep".ROCK MECHANICS AND ROCK ENGINEERING 56.5(2023):3499. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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