Knowledge Management System Of Institute of Earth Environment, CAS
Water Flow Characteristics Controlled by Slope Morphology under Different Rainfall Capacities and Its Implications for Slope Failure Patterns | |
Zhang, Bin1; Zhang, Maosheng2; Liu, Hao2; Sun, Pingping3; Feng, Li2,4; Li, Tonglu1; Wang, Yimin3 | |
通讯作者 | Zhang, Maosheng(xjtzms@xjtu.edu.cn) ; Feng, Li(fengli@ieecas.cn) |
2022-04-01 | |
发表期刊 | WATER |
卷号 | 14期号:8页码:18 |
摘要 | The high sensitivity of loess slopes to water has been emphasized in many studies. However, it is still limited in terms of the understanding of slope morphological differentiation on the overall and local failure patterns in slopes, as well as on the acquisition method of hydrological dynamics. In this study, rainfall characteristics and slope surface morphological differences were introduced. Geoelectric and environmental factors were monitored. On this basis, apparent resistivity corrected by seasonal temperature and its relationship with soil water content was calibrated. The water migration characteristics and potential failure patterns of three slope morphologies were evaluated. The results are: (i) the improved resistivity method can better reflect the water flow movement within the slope, and it performs well after being corrected by temperature; (ii) the characteristics of surface runoff and water infiltration are directly affected by the cumulative rainfall value, and especially when the cumulative rainfall is >70 mm threshold, the surface runoff quickly infiltrates into the deep of the slope along the preferential paths; (iii) the interception ability of loess slope morphology to the surface runoff is concave slope > convex slope > linear slope; (iv) with the continuous rainfall, the convex surface of a slope is prone to be damaged by saturated mud flow. When the cumulative rainfall threshold is 70 mm, the preferential flow is easily excited on the concave surface of the slope, resulting in local collapse at the slope toe and mid-deep landslides. |
关键词 | loess slope morphology rainfall apparent resistivity water migration failure pattern |
DOI | 10.3390/w14081271 |
关键词[WOS] | INVERSION ; STABILITY ; IRRIGATION ; BEHAVIOR |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[42107209] ; National Natural Science Foundation of China[41530640] ; National Key Research and Development Program of China[2018YFC1504700] |
WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
项目资助者 | National Natural Science Foundation of China ; National Key Research and Development Program of China |
WOS类目 | Environmental Sciences ; Water Resources |
WOS记录号 | WOS:000786072300001 |
出版者 | MDPI |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/17682 |
专题 | 黄土与第四纪地质国家重点实验室(2010~) |
通讯作者 | Zhang, Maosheng; Feng, Li |
作者单位 | 1.Chang Univ, Coll Geol Engn & Geomat, Xian 710054, Peoples R China 2.Xi Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710048, Peoples R China 3.Minist Nat Resources, Key Lab Geohazard Loess Area, Xian Ctr China Geol Survey, Xian 710054, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Bin,Zhang, Maosheng,Liu, Hao,et al. Water Flow Characteristics Controlled by Slope Morphology under Different Rainfall Capacities and Its Implications for Slope Failure Patterns[J]. WATER,2022,14(8):18. |
APA | Zhang, Bin.,Zhang, Maosheng.,Liu, Hao.,Sun, Pingping.,Feng, Li.,...&Wang, Yimin.(2022).Water Flow Characteristics Controlled by Slope Morphology under Different Rainfall Capacities and Its Implications for Slope Failure Patterns.WATER,14(8),18. |
MLA | Zhang, Bin,et al."Water Flow Characteristics Controlled by Slope Morphology under Different Rainfall Capacities and Its Implications for Slope Failure Patterns".WATER 14.8(2022):18. |
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