Numerical analysis and centrifuge modeling of shallow foundations

doi:10.1007/s13344-014-0013-8

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

	Numerical analysis and centrifuge modeling of shallow foundations
	Luo Qiang 1,2; Luan Mao-tian 1; Yang Yun-ming 3; Wang Zhong-tao 1; Zhao Shou-zheng 1
刊名	CHINA OCEAN ENGINEERING
	2014
卷号	28 期号:2 页码:163-180
关键词	non-coaxial model strain softening FEM analysis centrifuge test shallow foundation
ISSN号	0890-5487
DOI	10.1007/s13344-014-0013-8
英文摘要	The influence of non-coaxial constitutive model on predictions of dense sand behavior is investigated in this paper. The non-coaxial model with strain softening plasticity is applied into finite-element program ABAQUS, which is first used to predict the stress-strain behavior and the non-coaxial characteristic between the orientations of the principal stress and principal plastic strain rate in simple shear tests. The model is also used to predict load settlement responses and bearing capacity factors of shallow foundations. A series of centrifuge tests for shallow foundations on saturated dense sand are performed under drained conditions and the test results are compared with the corresponding numerical results. Various footing dimensions, depths of embedment, and footing shapes are considered in these tests. In view of the load settlement relationships, the stiffness of the load-displacement curves is significantly affected by the non-coaxial model compared with those predicted by the coaxial model, and a lower value of non-coaxial modulus gives a softer response. Considering the soil behavior at failure, the coaxial model predictions of bearing capacity factors are more advanced than those of centrifuge test results and the non-coaxial model results; besides, the non-coaxial model gives better predictions. The non-coaxial model predictions are closer to those of the centrifuge results when a proper non-coaxial plastic modulus is chosen.
WOS研究方向	Engineering ; Water Resources
语种	英语
出版者	CHINA OCEAN PRESS
WOS记录号	WOS:000335328600002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3586]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Dalian Univ Technol, Sch Civil Engn, Inst Geotech Engn ; 2.Nanyang Normal Univ, Acad Civil Engn & Architecture ; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Luo Qiang,Luan Mao-tian,Yang Yun-ming,et al. Numerical analysis and centrifuge modeling of shallow foundations[J]. CHINA OCEAN ENGINEERING,2014,28(2):163-180.
APA	Luo Qiang,Luan Mao-tian,Yang Yun-ming,Wang Zhong-tao,&Zhao Shou-zheng.(2014).Numerical analysis and centrifuge modeling of shallow foundations.CHINA OCEAN ENGINEERING,28(2),163-180.
MLA	Luo Qiang,et al."Numerical analysis and centrifuge modeling of shallow foundations".CHINA OCEAN ENGINEERING 28.2(2014):163-180.