A framework to determine soil-water retention relation for mine wastes and its applications in emergency risk assessment

doi:10.2166/nh.2021.126

	A framework to determine soil-water retention relation for mine wastes and its applications in emergency risk assessment
	Wang, Haibin 1; Chen, Quan 1; Zhang, Liwei 1,2; Li, Xiaochun 1,2
刊名	HYDROLOGY RESEARCH
	2021-03-17
页码	25
关键词	emergency risk assessment mine waste soil-water characteristic curve tailing unsaturated soil
ISSN号	1998-9563
DOI	10.2166/nh.2021.126
英文摘要	Tailing dams and waste dumps formed by the accumulation of mine wastes are usually at long-term unsaturated state under evaporation and consolidated drainage conditions. Soil-water retention relation is one of the key constitutive relations to analyze the seepage processes in tailing dams and waste dumps. In this study, typical coarse- and fine-grained tailings from a metallurgical mine were chosen to study the soil-water retention characteristics of the tailing samples. To begin with, the relationship between volumetric water content and suction of the tailing samples was experimentally measured, and typical soil-water characteristic curves (SWCCs) (i.e., Gardner, van Genuchten and Fredlund-Xing curves) were applied to fit the experimental data. After that, four empirical models to estimate the parameters in SWCCs (i.e., Aubertin-1998 model, Aubertin-2003 model, Vanapalli-2005 model and Chin-2010 model) were tested, and the Vanapalli-2005 model was the best-fit model for the tailing samples. Furthermore, this study proposes a generalized emergency risk assessment soil-water retention characteristics model for tailing dams and waste dumps, and a framework for the quick estimation of parameters in the SWCC is proposed as well. The recommended soil-water retention characteristics model and the related parameters can be used to predict water levels in tailing dams and waste dumps, which are very helpful for emergency risk assessment under rainstorm or flooding conditions.
资助项目	National Natural Science Foundation of China[51674238] ; National Natural Science Foundation of China[41902258] ; National Natural Science Foundation of China[U1967208] ; National Key R&D Program of China[2019YFE0100100-04]
WOS研究方向	Water Resources
语种	英语
出版者	IWA PUBLISHING
WOS记录号	WOS:000645286700001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/27227]
专题	中科院武汉岩土力学所
通讯作者	Zhang, Liwei
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Haibin,Chen, Quan,Zhang, Liwei,et al. A framework to determine soil-water retention relation for mine wastes and its applications in emergency risk assessment[J]. HYDROLOGY RESEARCH,2021:25.
APA	Wang, Haibin,Chen, Quan,Zhang, Liwei,&Li, Xiaochun.(2021).A framework to determine soil-water retention relation for mine wastes and its applications in emergency risk assessment.HYDROLOGY RESEARCH,25.
MLA	Wang, Haibin,et al."A framework to determine soil-water retention relation for mine wastes and its applications in emergency risk assessment".HYDROLOGY RESEARCH (2021):25.