Irrigation-induced loess flow failure in Heifangtai Platform, North-West China
文献类型：期刊论文
| 作者 | Xu, L.4; Min, H.1; Tham, L. G.2; Gong, Q. M.3; Dai, F. C.4 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2012 |
| 卷号 | 66期号:6页码:1707-1713 |
| 关键词 | Loess flow Loess platform Agricultural irrigation Laboratory test |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-011-0950-y |
| 英文摘要 | Because the construction of dams and hydro-electric power stations of Liujiaxia and Yanguoxia across the Yellow River in West Gansu Province, North-West China, inhabitants in the reservoir areas were resettled in Heifangtai Loess Platform. Irrigation thus started in 1968. Perched water table was significantly raised and resulted in many loess flow failures in the past 30 years. This type of landslide was often featured by long runout distance, high speed and recurrence. Laboratory tests along ICU and CSD stress paths were performed. It is shown that the loess has a strong strain-softening behavior and instability can occur in drained condition before undrained liquefaction. The failure mechanism of loess flow can be interpreted as the following process: with increasing perched water table, collapse in loess was first triggered in drained condition and led to undrained loading to adjacent soil in the lower saturated part of the loess platform. Under gravity loading applied by upper dry loess, undrained flow failure mobilized, eventually. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000305687400012 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3355]  |
| 专题 | 岩土力学所知识全产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech 2.Univ Hong Kong, Dept Civil Engn ; 3.Beijing Univ Technol, Beijing 100022, Peoples R China; 4.Chinese Acad Sci, Inst Geol & Geophys ; |
| 推荐引用方式 GB/T 7714 | Xu, L.,Min, H.,Tham, L. G.,et al. Irrigation-induced loess flow failure in Heifangtai Platform, North-West China[J]. ENVIRONMENTAL EARTH SCIENCES,2012,66(6):1707-1713. |
| APA | Xu, L.,Min, H.,Tham, L. G.,Gong, Q. M.,&Dai, F. C..(2012).Irrigation-induced loess flow failure in Heifangtai Platform, North-West China.ENVIRONMENTAL EARTH SCIENCES,66(6),1707-1713. |
| MLA | Xu, L.,et al."Irrigation-induced loess flow failure in Heifangtai Platform, North-West China".ENVIRONMENTAL EARTH SCIENCES 66.6(2012):1707-1713. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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