Laboratory Study of Effective Stress Coefficient for Saturated Claystone
文献类型：期刊论文
| 作者 | Li, Fanfan1,3; Chen, Weizhong2; Wu, Zhigang1; Yu, Hongdan2; Li, Ming1; Zhang, Zhifeng1; Zha, Fusheng3 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 13期号:19页码:14 |
| 关键词 | claystone effective stress consolidated drained back analysis loading-unloading cycles neutral stress loading rate |
| DOI | 10.3390/app131910592 |
| 英文摘要 | Claystone is potentially the main rock formation for the deep geological disposal of high-level radioactive nuclear waste. A major factor that affects the deformation of the host medium is effective stress. Therefore, studying the effective stress principle of claystone is essential for a stability analysis of waste disposal facilities. Consolidated drained (CD) tests were carried out on claystone samples to study their effective stress principle in this paper. Firstly, two samples were saturated under a specified confining pressure and pore pressure for about one month. Secondly, the confining pressure and pore pressure were increased to a specified value simultaneously and then reverted to the previous stress state (the deformations of the samples were recorded during the whole process). Different incremental combinations of the confining pressure and pore pressure were tried at this step. Finally, the effective stress coefficients of the samples were obtained through a back analysis. Furthermore, some potential influencing factors (the neutral stress and loading rate) of the effective stress coefficient were also studied through additional tests. Some interesting results are worth mentioning: (1) the effective stress coefficient of claystone is close to one; (2) the neutral stress and loading rate may have little effect on the effective stress coefficient of claystone. |
| 资助项目 | National Natural Science Foundation of China[51879258] ; National Natural Science Foundation of China[42377179] |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001097443600001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39917]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Fanfan |
| 作者单位 | 1.Anhui Transport Consulting & Design Inst Co Ltd, Res & Dev Ctr Technol & Equipment Energy Conserva, Hefei 230088, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Fanfan,Chen, Weizhong,Wu, Zhigang,et al. Laboratory Study of Effective Stress Coefficient for Saturated Claystone[J]. APPLIED SCIENCES-BASEL,2023,13(19):14. |
| APA | Li, Fanfan.,Chen, Weizhong.,Wu, Zhigang.,Yu, Hongdan.,Li, Ming.,...&Zha, Fusheng.(2023).Laboratory Study of Effective Stress Coefficient for Saturated Claystone.APPLIED SCIENCES-BASEL,13(19),14. |
| MLA | Li, Fanfan,et al."Laboratory Study of Effective Stress Coefficient for Saturated Claystone".APPLIED SCIENCES-BASEL 13.19(2023):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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