General Scanning Hysteresis Model for Soil-Water Retention Curves

doi:10.1061/(ASCE)GT.1943-5606.0002184

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	General Scanning Hysteresis Model for Soil-Water Retention Curves
	Chen, Pan ; Lu, Ning ; Wei, Changfu
刊名	JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
	2019
卷号	145 期号:12 页码:-
关键词	Unsaturated soil Soil water retention Hydraulic hysteresis Negative matric suction Air entrapment
ISSN号	1090-0241
DOI	10.1061/(ASCE)GT.1943-5606.0002184
英文摘要	Soil-water retention curve (SWRC) is a constitutive relation indispensable for analysis of fluid flow and moisture and stress distributions in unsaturated soils. Although the SWRC is traditionally formulated in the regime of positive matric suction, it is also relevant in the negative matric suction regime where pore water are pressurized. To date, no mathematical model is available for characterization of SWRC in both the positive and negative matric suction regimes. In this paper, the underlying mechanism for hydraulic hysteresis is analyzed especially in the regime of negative matric suction, and a novel SWRC scanning hysteresis model is developed for both the positive and negative matric suctions. To demonstrate the performance of the proposed model, the simulated results are compared with experimental data available in the literature, indicating that the new model can describe well the hydraulic hysteresis of unsaturated soils. The proposed model introduces only one parameter in order to describe the scanning hydraulic behavior and is general in the sense that the model can describe well the soil-water retention characteristics in both the positive and negative matric suction regimes. (C) 2019 American Society of Civil Engineers.
WOS研究方向	Engineering ; Geology
语种	英语
WOS记录号	WOS:000497998400015
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14811]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Colorado Sch Mines, Dept Civil & Environm Engn, Golden, CO 80401 USA 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China;
推荐引用方式 GB/T 7714	Chen, Pan,Lu, Ning,Wei, Changfu. General Scanning Hysteresis Model for Soil-Water Retention Curves[J]. JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,2019,145(12):-.
APA	Chen, Pan,Lu, Ning,&Wei, Changfu.(2019).General Scanning Hysteresis Model for Soil-Water Retention Curves.JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,145(12),-.
MLA	Chen, Pan,et al."General Scanning Hysteresis Model for Soil-Water Retention Curves".JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING 145.12(2019):-.