气候变化领域集成服务门户(CCPortal): Effect of Temperature Gradients on the Frost Heave of a Saturated Silty Clay with a Water Supply

CCPortal

DOI	10.1061/(ASCE)CR.1943-5495.0000137
	Effect of Temperature Gradients on the Frost Heave of a Saturated Silty Clay with a Water Supply
	Zhang, Mingyi; Zhang, Xiyin; Li, Shuangyang; Lu, Jianguo; Pei, Wansheng
发表日期	2017
ISSN	0887-381X
EISSN	1943-5495
卷号	31 期号:4
英文摘要	Frost heave is the primary cause of frost damage in cold regions. For frost-susceptible soils, water migration induced by a temperature gradient is a key factor in determining the frost heave of the soils with a water supply during the freezing process. This study looked at the effect of temperature gradients on frost heave through a series of one-directional freezing experiments for a saturated silty clay with a water supply under a variety of temperature gradients. The results indicate that the deformation and water intake of the saturated silty clay with water supply increase with the temperature gradient. The water intake of the soil begins when the freezing front drops to a critical advance rate, which is linearly related to the temperature gradient. However, even if the freezing front is stationary (advance rate of zero), a small temperature gradient is still needed to induce water intake by the soil and to cause a sizeable frost heave. The temperature gradient and the freezing rate can be regarded as two macroindexes that indicate the frost heave of soils with a water supply during the freezing process. (C) 2017 American Society of Civil Engineers.
英文关键词	Frost heave; Temperature gradient; Water supply; Saturated silty clay
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	ICE LENS FORMATION ; MOISTURE MIGRATION ; FROZEN SOILS ; FREEZE ; THAW
WOS记录号	WOS:000417339500006
来源期刊	JOURNAL OF COLD REGIONS ENGINEERING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240140
作者单位	[Zhang, Mingyi; Zhang, Xiyin; Li, Shuangyang; Lu, Jianguo; Pei, Wansheng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Mingyi,Zhang, Xiyin,Li, Shuangyang,et al. Effect of Temperature Gradients on the Frost Heave of a Saturated Silty Clay with a Water Supply[J]. 中国科学院西北生态环境资源研究院,2017,31(4).
APA	Zhang, Mingyi,Zhang, Xiyin,Li, Shuangyang,Lu, Jianguo,&Pei, Wansheng.(2017).Effect of Temperature Gradients on the Frost Heave of a Saturated Silty Clay with a Water Supply.JOURNAL OF COLD REGIONS ENGINEERING,31(4).
MLA	Zhang, Mingyi,et al."Effect of Temperature Gradients on the Frost Heave of a Saturated Silty Clay with a Water Supply".JOURNAL OF COLD REGIONS ENGINEERING 31.4(2017).