Study on Damage and Repair Mechanical Characteristics of Rock Salt Under Uniaxial Compression
文献类型：期刊论文
| 作者 | Yin, Hongwu; Yang, Chunhe; Ma, Hongling; Shi, Xilin; Chen, Xiangsheng; Zhang, Nan; Ge, Xinbo; Liu, Wei |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2019 |
| 卷号 | 52期号:3页码:659-671 |
| 关键词 | Rock salt Underground salt cavern Uniaxial compression Damage Repair Yield stress |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-018-1604-0 |
| 英文摘要 | Damage and self-healing characteristics of rock salt are key factors for the evaluation of underground salt cavern safety. During the construction of a salt cavern, characteristics of the surrounding rock (formation temperature, pressure and brine saturation) can affect the self-healing of rock salt. To study the recovery effect, we carried out a study through uniaxial compression tests. The rock salt samples were divided into group S and group X: samples in group X were annealed after initial damage (damage point: 15Mpa, 20Mpa, 25Mpa and peak stress) while the samples in group S were not. For group S, a peak damage was applied immediately after the initial damage. Group X samples, after initial damage, were placed in the repair environment for 7days. The repair environment mentioned above is set as saturated brine with a temperature of 50 degrees C and pressure of 12MPa. It turned out that (1) the rock salt has almost no compaction phase during uniaxial compression. Damaged rock salt experienced an apparent compaction stage after being repaired; (2) for all the samples in the two groups, the yield stress and elastic modulus increase after the initial damage, which is regarded as the hardening of rock salt; (3) the plasticity of damaged rock salt can significantly recover after having been repaired. Thus, the environment during the construction of a salt cavern has a good effect on the self-healing of rock salt, and this characteristic of rock salt is beneficial to the safe operation of a cavern for storage purposes. |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000460704000002 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15035]  |
| 专题 | 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 |
| 作者单位 | 1.Chongqing Univ, State Key Lab Coal Mine Disaster & Control, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, 2 Xiaohongshan Shuiguohu, Wuhan 430071, Hubei, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yin, Hongwu,Yang, Chunhe,Ma, Hongling,et al. Study on Damage and Repair Mechanical Characteristics of Rock Salt Under Uniaxial Compression[J]. ROCK MECHANICS AND ROCK ENGINEERING,2019,52(3):659-671. |
| APA | Yin, Hongwu.,Yang, Chunhe.,Ma, Hongling.,Shi, Xilin.,Chen, Xiangsheng.,...&Liu, Wei.(2019).Study on Damage and Repair Mechanical Characteristics of Rock Salt Under Uniaxial Compression.ROCK MECHANICS AND ROCK ENGINEERING,52(3),659-671. |
| MLA | Yin, Hongwu,et al."Study on Damage and Repair Mechanical Characteristics of Rock Salt Under Uniaxial Compression".ROCK MECHANICS AND ROCK ENGINEERING 52.3(2019):659-671. |
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。