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DOI	10.1016/j.coldregions.2017.06.002
	Model test study on the anti-saline effect of the crushed-rock embankment with impermeable geotextile in frozen saline soil regions
	Ma, Qinguo; Lai, Yuanming; Zhang, Mingyi; You, Zhemin
发表日期	2017
ISSN	0165-232X
EISSN	1872-7441
起始页码	86
结束页码	96
卷号	141
英文摘要	In the road construction in frozen saline soil regions, treatments on both permafrost and saline soils are the main challenges to keep the stability of embankments. The crushed-rock embankment was proved to be an effective cooling measure to protect underlying permafrost layers from thawing. In this paper, as a countermeasure to salt migration and salt expansion, impermeable geotextile was added in the crushed-rock embankment. However, little research work has been done on the cooling and anti-saline effects. Thus, the tests of two embankment models, the crushed-rock embankment with impermeable geotextile and the ordinary filling embankment, were carried out to compare this novel embankment structure with ordinary one. The variation characteristics of temperature, moisture, salt and deformation were investigated, and it was found that their variations were a coupled process. The novel embankment structure showed an efficient cooling effect. Meantime, it can efficiently prevent water and salt from migrating to the upper soil layer. More importantly, it can efficiently alleviate frost heaving and salt expansion, and consequently avoid the appearance of longitudinal cracks. The results will provide a good reference to the widespread application of this novel embankment structure in frozen saline soil regions.
英文关键词	Frozen saline soil region; Crushed-rock embankment; Impermeable geotextile; Cooling effect; Anti-saline effect
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	DUCT-VENTILATED EMBANKMENT ; BOUNDARY-CONDITIONS ; POROUS MATERIALS ; CRYSTALLIZATION
WOS记录号	WOS:000407693100009
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239476
作者单位	[Ma, Qinguo; Lai, Yuanming; Zhang, Mingyi; You, Zhemin] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Ma, Qinguo; Lai, Yuanming] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma, Qinguo,Lai, Yuanming,Zhang, Mingyi,et al. Model test study on the anti-saline effect of the crushed-rock embankment with impermeable geotextile in frozen saline soil regions[J],2017,141.
APA	Ma, Qinguo,Lai, Yuanming,Zhang, Mingyi,&You, Zhemin.(2017).Model test study on the anti-saline effect of the crushed-rock embankment with impermeable geotextile in frozen saline soil regions.COLD REGIONS SCIENCE AND TECHNOLOGY,141.
MLA	Ma, Qinguo,et al."Model test study on the anti-saline effect of the crushed-rock embankment with impermeable geotextile in frozen saline soil regions".COLD REGIONS SCIENCE AND TECHNOLOGY 141(2017).