Study of dilatancy behaviors of calcareous soils in a triaxial test

doi:10.1080/1064119X.2018.1526236

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

	Study of dilatancy behaviors of calcareous soils in a triaxial test
	Wang, Xing ; Zhu, Chang-Qi ; Wang, Xin-Zhi ; Qin, Yue
刊名	MARINE GEORESOURCES & GEOTECHNOLOGY
	2019
卷号	37 期号:9 页码:1057-1070
关键词	Calcareous soil dilatancy stress-strain curve volumetric strain rate void ratio
ISSN号	1064-119X
DOI	10.1080/1064119X.2018.1526236
英文摘要	In this article, the dilatancy of calcareous soil is studied systematically based on triaxial consolidation drainage shear tests, and the difference in dilatancy between calcareous soil and siliceous soil is also investigated. It was found that: ? Calcareous soil experience obvious dilated deformation. Dilatancy tendency increases with increasing related density and decreases with increasing confining pressure. ? The volumetric strain rate initially increases from negative to positive. After it reaches a maximum, there is a small decrease in the volumetric strain rate, but it is still greater than zero, and the stress-strain curves are of softening type. ? For the same condition, the dilatancy deformation of calcareous sand begins later than that of siliceous sand, and the volume compression before dilatancy is also larger for calcareous sand. ? The critical state alone cannot accurately describe the entire deformation process of soil, and it is proposed that the phase transformation state be added to the standard method used to assess soil dilatation and contraction. ? Based on the statistical analysis of experimental data, mathematical relationships were established between void ratio, relative density, and effective confining pressure of phase transformation state and critical state, respectively.
WOS研究方向	Engineering ; Oceanography ; Mining & Mineral Processing
语种	英语
WOS记录号	WOS:000488852200004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14850]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Qingdao Univ Technol, Qingdao, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xing,Zhu, Chang-Qi,Wang, Xin-Zhi,et al. Study of dilatancy behaviors of calcareous soils in a triaxial test[J]. MARINE GEORESOURCES & GEOTECHNOLOGY,2019,37(9):1057-1070.
APA	Wang, Xing,Zhu, Chang-Qi,Wang, Xin-Zhi,&Qin, Yue.(2019).Study of dilatancy behaviors of calcareous soils in a triaxial test.MARINE GEORESOURCES & GEOTECHNOLOGY,37(9),1057-1070.
MLA	Wang, Xing,et al."Study of dilatancy behaviors of calcareous soils in a triaxial test".MARINE GEORESOURCES & GEOTECHNOLOGY 37.9(2019):1057-1070.