气候变化领域集成服务门户(CCPortal): Influence of moisture content on permeability of sandy soils in frozen and unfrozen states

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DOI	10.21782/KZ1560-7496-2016-3(71-78)
	Influence of moisture content on permeability of sandy soils in frozen and unfrozen states
	Chuvilin E.M.; Grebenkin S.I.; Sacleux M.
发表日期	2016
ISSN	15607496
卷号	20 期号:3
英文摘要	Results of experimental studies on the estimation of the permeability of sandy soils with different moisture content in frozen state and after thawing have been presented. The experiments have been performed in a specially designed device allowing the evaluation of gas permeability of samples (3 cm diameter and 3-5 cm length) at various temperature and pressure conditions. During the experiments, the dependencies of the permeability of the sand samples in frozen and thawed states from the degree of saturation by ice or porous water have been obtained. It has been revealed, that the gas permeability is reduced by several orders of magnitude above the critical degree of saturations (40-50 % and 50-55 % for frozen and thawed samples, respectively). The character of dependence of the gas permeability of sandy frozen soils on the degree of saturation is largely determined by their structural features, and first of all by the dependence of ice-cement type on the moisture content. It has been demonstrated that the gas permeability of the sandy samples goes up during thawing. The difference in permeability between the frozen and thawed samples increases proportionally to saturation.
英文关键词	Degree of saturation; Frozen soil; Gas permeability; Ice saturation; Moisture content; Sandy soil; Thawing; Unfrozen soil
学科领域	frozen ground; ice; moisture content; permeability; sandy soil; saturation; thawing
语种	英语
scopus关键词	frozen ground; ice; moisture content; permeability; sandy soil; saturation; thawing
来源期刊	Earth's Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119743
作者单位	Lomonosov Moscow State University, Department of Geology, Leninskie Gory, 1, Moscow, 119991, Russian Federation; Total EP Exploration, Place Jean Millier, 2, Courbevoie, La Défense, 92400, France
推荐引用方式 GB/T 7714	Chuvilin E.M.,Grebenkin S.I.,Sacleux M.. Influence of moisture content on permeability of sandy soils in frozen and unfrozen states[J],2016,20(3).
APA	Chuvilin E.M.,Grebenkin S.I.,&Sacleux M..(2016).Influence of moisture content on permeability of sandy soils in frozen and unfrozen states.Earth's Cryosphere,20(3).
MLA	Chuvilin E.M.,et al."Influence of moisture content on permeability of sandy soils in frozen and unfrozen states".Earth's Cryosphere 20.3(2016).