Study on shear strength characteristics of loess dam materials under saturated conditions
文献类型：期刊论文
| 作者 | Xu, Jiangbo2; Wei, Wei2; Bao, Han2; Zhang, Keke2; Lan, Hengxing3 ; Yan, Changgen2; Sun, Weifeng2; Wu, Faquan1,4
|
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2020-07-01 |
| 卷号 | 79期号:13页码:14 |
| 关键词 | Loess stacked dam Saturated remolded loess Pore water pressure Index of shear strength |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-020-09089-x |
| 通讯作者 | Xu, Jiangbo(xujiangbo@yeah.net) |
| 英文摘要 | A loess accumulation dam in Ansai Area, Yan'an, Shaanxi province is selected as the research object, and the remolded soil of the dam body is taken as the test material to conduct the saturated loess indoor triaxial test. The test shows that the peak stress of saturated remolded loess increases with the enhancement of confining pressure and dry density, and the pore water pressure rises rapidly in the shear of the samples with a dry density of 1.4-1.6 g/cm(3)and gradually flattens out. When the samples with a dry density of 1.7 g/cm(3)in the process of shearing, the pore pressure rises rapidly and then decreases as the volume increases. The total internal friction angle and effective internal friction angle increase with the augment of dry density, and the total cohesion and effective cohesion show a changing trend of first rising, then falling and then rising due to the different development of original cohesion, sliding friction and rolling friction. Meanwhile, combined with field monitoring, it can be determined that the dam a total of three times more obvious damage. According to the comparison of field test and laboratory test, the concept and calculation method of "inspection threshold" are put forward. |
| WOS关键词 | LIQUEFACTION ; BEHAVIOR |
| 资助项目 | National Natural Science Foundation of China[41790443] ; National Natural Science Foundation of China[41927806] ; Fundamental Research Funds for the Central Universities[300102219213] ; Key R&D Program of Shaanxi Province[2018ZDXM-SF-024] ; Natural Science Foundation of Qinghai Province[2019-ZJ-7050] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000546918900002 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Key R&D Program of Shaanxi Province ; Natural Science Foundation of Qinghai Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162390]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Jiangbo |
| 作者单位 | 1.Shaoxing Univ, Coll Civil Engn, Ctr Rock Mech & Geol Disaster, Shaoxing 312000, Zhejiang, Peoples R China 2.Changan Univ, Highway Sch, Xian 710064, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Zhejiang Collaborat Innovat Ctr Prevent & Control, Shaoxing 312000, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Jiangbo,Wei, Wei,Bao, Han,et al. Study on shear strength characteristics of loess dam materials under saturated conditions[J]. ENVIRONMENTAL EARTH SCIENCES,2020,79(13):14. |
| APA | Xu, Jiangbo.,Wei, Wei.,Bao, Han.,Zhang, Keke.,Lan, Hengxing.,...&Wu, Faquan.(2020).Study on shear strength characteristics of loess dam materials under saturated conditions.ENVIRONMENTAL EARTH SCIENCES,79(13),14. |
| MLA | Xu, Jiangbo,et al."Study on shear strength characteristics of loess dam materials under saturated conditions".ENVIRONMENTAL EARTH SCIENCES 79.13(2020):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。