Model Test Study on Deformation Characteristics of a Fissured Expansive Soil Slope Subjected to Loading and Irrigation
文献类型：期刊论文
| 作者 | Li, Zhiqing1,2,5; Kong, Youxing1,2; Fu, Le3,4; Zhou, Yingxin6; Qian, Zhengfu6; Hu, Ruilin1,2 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 11期号:22页码:15 |
| 关键词 | fissured expansive soil slope crack strain digital image correlation (DIC) speckle infiltration |
| DOI | 10.3390/app112210891 |
| 英文摘要 | Expansive soils are characterized by repeated swelling and shrinkage. They cause great damage to engineering projects because of their expansiveness, over-consolidation and propensity to crack. However, the impact of cracks on the stability of an expansive soil slope during loading and irrigation is not yet fully understood. This study aimed to investigate the relationship between slope state and crack development in fissured expansive soils. A series of physical model tests with different types of cracks were conducted, in which the fissured expansive soil slopes were subjected to different loadings (1.6, 3.2, 4.8, 6.4, 16 MPa), and irrigated at a flow rate of 25 mL/min. The VIC-2d software, which utilizes the digital image correlation principle, was used to quantitatively obtain the horizontal and vertical strain data of the slope model. The closure and opening of cracks, and the slope state after loading and irrigation were monitored by strain data analysis using VIC-2d software. The results indicate that the excessive overlying stress revives the existing cracks and produces sliding along the crack interface. The sliding surface of the fissured expansive soil slope became shallower due to the water infiltration. It was demonstrated that the middle and foot of the fissured expansive soil slope were the key positions for reinforcement from the perspective of the mutual transformation of tensile strain and compressive strain on the surface of the slope. It is of great importance to study the relationship between the crack strain state and deformation trend of a slope subjected to loading and infiltration to understand the progressive surface- or shallow-layer sliding mechanisms, and reinforce key areas of the slopes in areas containing moderately or strongly expansive soils with abundant cracks. |
| WOS关键词 | STRENGTH ; STABILITY ; FIBER ; ASH |
| 资助项目 | National Key Research and Development Plan of China[2019YFC1509903] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; National Natural Science Foundation of China[42177146] ; National Natural Science Foundation of China[41790442] ; Key Research and Development Plan of Yunnan Province[202103AA080013] ; Chinese Academy of Sciences Key Deployment Project[KFZD-SW-422] ; Youth Innovation Promotion Association CAS[2017092] ; International Cooperation Program of Chinese Academy of Sciences[131551KYSB20180042] |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000725353500001 |
| 出版者 | MDPI |
| 资助机构 | National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103881]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Li, Zhiqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Beijing Zhongyan Tiandi Technol Co Ltd, Beijing 100029, Peoples R China 4.China Inst Geotech Invest & Surveying, Beijing 100007, Peoples R China 5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 6.Yunnan Chuyao Expressway Construct Headquarters, Chuxiong, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhiqing,Kong, Youxing,Fu, Le,et al. Model Test Study on Deformation Characteristics of a Fissured Expansive Soil Slope Subjected to Loading and Irrigation[J]. APPLIED SCIENCES-BASEL,2021,11(22):15. |
| APA | Li, Zhiqing,Kong, Youxing,Fu, Le,Zhou, Yingxin,Qian, Zhengfu,&Hu, Ruilin.(2021).Model Test Study on Deformation Characteristics of a Fissured Expansive Soil Slope Subjected to Loading and Irrigation.APPLIED SCIENCES-BASEL,11(22),15. |
| MLA | Li, Zhiqing,et al."Model Test Study on Deformation Characteristics of a Fissured Expansive Soil Slope Subjected to Loading and Irrigation".APPLIED SCIENCES-BASEL 11.22(2021):15. |
入库方式： OAI收割
来源：地质与地球物理研究所
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