Stress history and time effect on shear modulus of expansive soils

doi:10.1007/s12517-021-09342-y

	Stress history and time effect on shear modulus of expansive soils
	Li, Jingjing 3; Kong, Lingwei 1,2; Jin, Lei 3
刊名	ARABIAN JOURNAL OF GEOSCIENCES
	2022
卷号	15 期号:1 页码:9
关键词	Expansive soil Stiffness Shear modulus Time effect Stress history Resonant column tests
ISSN号	1866-7511
DOI	10.1007/s12517-021-09342-y
英文摘要	Soil has a certain memory for stress history, whose mechanical property is also related to time effect. To consider the influence of stress history and consolidation time on shear modulus of expansive soils, resonant column tests were carried out with compression stress paths of loading and unloading by different consolidation time. Results show that both stress history and consolidation time have a pronounced influence on the shear modulus and its decay rule. The time effect of loading path on shear modulus of expansive soils is different from that of unloading path. Under the loading path, the shear modulus of the soil enhances with consolidation time increasing, which has a positive linear correlation with the logarithm of consolidation time. While under the unloading path, the shear modulus decreases first and then increases with the increase of consolidation time, which is related to the logarithm of consolidation time as a quadratic function. Furthermore, the shear modulus-consolidation pressure curves of expansive soils also show different rules in loading path and unloading path. Under the loading path, the shear modulus shows a positive linear correlation with the consolidation pressure, while under the unloading path, the shear modulus shows a positive linear correlation with the logarithm of consolidation pressure. Conclusion can be drawn that the influence of stress history and time effect on shear modulus should be taken into account in engineering design and construction.
资助项目	National Natural Science Foundation of China[12002121] ; Natural Science Foundation of Hubei Province[2019CFB199]
WOS研究方向	Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000733749700005
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/30898]
专题	中科院武汉岩土力学所
通讯作者	Li, Jingjing
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, Hubei, Peoples R China 3.Hubei Polytech Univ, Sch Civil Engn, Huangshi 435003, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Li, Jingjing,Kong, Lingwei,Jin, Lei. Stress history and time effect on shear modulus of expansive soils[J]. ARABIAN JOURNAL OF GEOSCIENCES,2022,15(1):9.
APA	Li, Jingjing,Kong, Lingwei,&Jin, Lei.(2022).Stress history and time effect on shear modulus of expansive soils.ARABIAN JOURNAL OF GEOSCIENCES,15(1),9.
MLA	Li, Jingjing,et al."Stress history and time effect on shear modulus of expansive soils".ARABIAN JOURNAL OF GEOSCIENCES 15.1(2022):9.