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DOI	10.1139/cgj-2019-0218
	Frost heave and thaw consolidation modelling. Part 1: A water flux function for frost heaving
	Yu, Fan; Guo, Peijun; Lai, Yuanming; Stolle, Dieter
发表日期	2020
ISSN	0008-3674
EISSN	1208-6010
起始页码	1581
结束页码	1594
卷号	57 期号:10
英文摘要	Although much effort has been made to develop various frost heave models in the past decades, a simple yet versatile model is still needed for engineering applications. This paper presents a method to estimate frost heave in frozen soil using a macroscopic water flux function that extends the segregation potential to make it applicable for both steady state and transient freezing and thawing states. The formation of an individual ice lens is modelled by combining previously developed stress and strain criteria. The water flux function, which includes various factors in accordance with the porosity rate function, can describe the growth of both new and old ice lenses. More importantly, every component of the water flux function is physically explained by the theory of pre-melting dynamics, where all the influencing factors are traced back to their impacts on the ice volume distribution. The performance of the model is demonstrated via simulations of one-dimensional freezing and thawing processes after the model is validated by a specific case from previous literature. Although adequate data are not available for a stricter experimental verification of the model, it is observed that the simulations predict the general course of events together with significant specific features that were identified in previous experimental studies.
英文关键词	frost heave; thaw consolidation; segregation potential; premelting dynamics; porosity rate function
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Geological ; Geosciences, Multidisciplinary
WOS关键词	COUPLED HEAT ; FREEZING CHARACTERISTICS ; HYDRAULIC CONDUCTIVITY ; CLAYEY SILT ; VOID RATIO ; SEGREGATION ; PREDICTION ; SOILS ; OVERCONSOLIDATION ; MECHANICS
WOS记录号	WOS:000575705400011
来源期刊	CANADIAN GEOTECHNICAL JOURNAL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239562
作者单位	[Yu, Fan; Lai, Yuanming] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Yu, Fan; Guo, Peijun; Stolle, Dieter] McMaster Univ Hamilton, Dept Civil Engn, Hamilton, ON L8S 4L7, Canada
推荐引用方式 GB/T 7714	Yu, Fan,Guo, Peijun,Lai, Yuanming,et al. Frost heave and thaw consolidation modelling. Part 1: A water flux function for frost heaving[J],2020,57(10).
APA	Yu, Fan,Guo, Peijun,Lai, Yuanming,&Stolle, Dieter.(2020).Frost heave and thaw consolidation modelling. Part 1: A water flux function for frost heaving.CANADIAN GEOTECHNICAL JOURNAL,57(10).
MLA	Yu, Fan,et al."Frost heave and thaw consolidation modelling. Part 1: A water flux function for frost heaving".CANADIAN GEOTECHNICAL JOURNAL 57.10(2020).