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DOI	10.1007/s11069-020-04049-x
	Experimental study on the evolution of the drained mechanical properties of soil subjected to internal erosion
	Chen L.; He J.; Yang S.; Dou S.; Su D.
发表日期	2020
ISSN	0921030X
起始页码	1565
结束页码	1589
卷号	103 期号:1
英文摘要	Internal erosion can cause geotechnical structures to fail due to the loss of fine particles, which is induced by internal erosion that can weaken the mechanical properties of soil. Few studies have focused on the effect of internal erosion on the mechanical properties of soil. Accordingly, the present paper studies the evolution laws of the drained mechanical properties of soil due to internal erosion by conducting a series of triaxial consolidated drained shear tests and using the fine particle elimination method. The main conclusions of the study are as follows. Under the same confining pressure, the strain-softening phenomenon of the stress–strain curve will decrease with an increasing loss of fine particles, and a soil sample with a lower loss rate of fine particles will have a more dilative response. The loss of fine particles decreases the drained failure strength and drained internal friction angle. Mathematical relationships between the drained failure strength and the loss rate of fine particles and between the drained internal friction angle and the loss rate of fine particles have been established. A modified Duncan–Chang model that considers the loss of fine particles induced by internal erosion has been established. © 2020, Springer Nature B.V.
关键词	Drained mechanical properties Internal erosion Loss of fine particles Modified Duncan–Chang model
英文关键词	numerical model; particle size; shear test; soil erosion; soil mechanics; soil structure; stress-strain relationship; triaxial test
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205630
作者单位	Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, College of Civil and Transportation Engineering, Hohai University, No. 1 of Xikang Road, Nanjing, 210098, China; Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, Nanjing, China; Nanjing Water Planning and Designing Institute.Corp.Ltd, Nanjing, 210022, China
推荐引用方式 GB/T 7714	Chen L.,He J.,Yang S.,et al. Experimental study on the evolution of the drained mechanical properties of soil subjected to internal erosion[J],2020,103(1).
APA	Chen L.,He J.,Yang S.,Dou S.,&Su D..(2020).Experimental study on the evolution of the drained mechanical properties of soil subjected to internal erosion.Natural Hazards,103(1).
MLA	Chen L.,et al."Experimental study on the evolution of the drained mechanical properties of soil subjected to internal erosion".Natural Hazards 103.1(2020).