Cumulative strain characteristics of compacted soil under effect of freeze-thaw cycles with water supply

doi:10.1016/j.trgeo.2019.100291

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

	Cumulative strain characteristics of compacted soil under effect of freeze-thaw cycles with water supply
	Lu, Zheng ; She, Jianbo ; Wu, Xiaowen ; Yao, Hailin
刊名	TRANSPORTATION GEOTECHNICS
	2019
卷号	21 期号:-页码:-
关键词	Cumulative plastic strain Freeze-thaw cycle Open system Dynamic triaxial test Multifactor model
ISSN号	2214-3912
DOI	10.1016/j.trgeo.2019.100291
英文摘要	The cumulative strain characteristics of compacted subgrade soil were investigated by considering the effects of both freeze-thaw (FT) cycles and repeating loads. The soil samples were obtained from the seasonally frozen area in Northeast China. First, FT cycle experiments were carried out in an open system, following which dynamic triaxial tests were conducted on the same specimens. The influences of the number of FT cycles, dynamic stress, confining pressure, loading frequency, initial moisture content and compaction degree on the cumulative strain of the compacted soil were investigated systematically. The experimental results demonstrate that the cumulative plastic strain is positively correlated with the number of FT cycles, dynamic stress and initial moisture content, while the correlations between the cumulative plastic strain and the factors of confining pressure, loading frequency, and compaction degree are negative. Furthermore, the contribution rate of every factor on the cumulative plastic strain indicates that the dynamic stress and number of FT cycles have the significant effect on the cumulative plastic strain, while the initial moisture content effect is the weakest. Finally, a multifactor prediction model was established to evaluate the cumulative plastic strain of soil subjected to FT cycles with water supply, and the calculated results agree well with the experimental data, implying that the model proposed in this study is sufficiently reliable.
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000508265800009
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14799]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China; 3.Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China;
推荐引用方式 GB/T 7714	Lu, Zheng,She, Jianbo,Wu, Xiaowen,et al. Cumulative strain characteristics of compacted soil under effect of freeze-thaw cycles with water supply[J]. TRANSPORTATION GEOTECHNICS,2019,21(-):-.
APA	Lu, Zheng,She, Jianbo,Wu, Xiaowen,&Yao, Hailin.(2019).Cumulative strain characteristics of compacted soil under effect of freeze-thaw cycles with water supply.TRANSPORTATION GEOTECHNICS,21(-),-.
MLA	Lu, Zheng,et al."Cumulative strain characteristics of compacted soil under effect of freeze-thaw cycles with water supply".TRANSPORTATION GEOTECHNICS 21.-(2019):-.