Water Flow Characteristics Controlled by Slope Morphology under Different Rainfall Capacities and Its Implications for Slope Failure Patterns

doi:10.3390/w14081271

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Water Flow Characteristics Controlled by Slope Morphology under Different Rainfall Capacities and Its Implications for Slope Failure Patterns
	Zhang, Bin 4; Zhang, Maosheng 3; Liu, Hao 3; Sun, Pingping 2; Feng, Li 1,3; Li, Tonglu 4; Wang, Yimin 2
刊名	WATER
	2022-04-01
卷号	14 期号:8 页码:18
关键词	loess slope morphology rainfall apparent resistivity water migration failure pattern
DOI	10.3390/w14081271
通讯作者	Zhang, Maosheng(xjtzms@xjtu.edu.cn) ; Feng, Li(fengli@ieecas.cn)
英文摘要	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.
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关键词	INVERSION ; STABILITY ; IRRIGATION ; BEHAVIOR
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
语种	英语
出版者	MDPI
WOS记录号	WOS:000786072300001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17681]
专题	地球环境研究所_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.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 2.Minist Nat Resources, Key Lab Geohazard Loess Area, Xian Ctr China Geol Survey, Xian 710054, Peoples R China 3.Xi Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710048, Peoples R China 4.Chang Univ, Coll Geol Engn & Geomat, Xian 710054, 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.