Analysis of sinking mechanism and finite element for static pile in collapsed loess region

doi:10.4028/www.scientific.net/AMR.482-484.1645

	Analysis of sinking mechanism and finite element for static pile in collapsed loess region
	Tian, Zhi-Hui 1; Wang, Yao-Jun 1; Huang, Xue-Feng 2
	2012
会议名称	3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012
会议录名称	Advanced Materials Research
卷号	482-484
页码	1645-1649
会议日期	March 27, 2012 - March 29, 2012
会议地点	Xiamen, China
出版者	Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
摘要	The static pile sinking calculation model has been established based on cavity expansion theory and the elastic-plastic analytical solution has been solved. This model can truly reflect the static pile sinking mechanism in collapsed loess region, providing a theoretical basis for the analysis and design of static pile. A finite element model has been set up to simulate the entire pile sinking process. The results show that due to relatively large pile rigidity and strength compared with the soil, under instantaneous load, the surrounding soil will produce a large deformation, which is mainly caused by pile friction diffusion. When the external load increases, the interaction between stress and pile-soil gradually increases; when reaching the proportion of limited load, both of them are close to constant, accordingly, the growth slows down and tend to be stable; when the external load is greater than the proportional limit load, the phenomenon of mutation occurs. Finally, after comparison, the finite element calculation results match well with the test results. Through analysis and engineering practice, static pile is found to have a good prospect in collapsed loess region. Some useful conclusion can be used as references for similar projects in these areas. © (2012) Trans Tech Publications, Switzerland.
关键词	Finite element method Soils Analysis and design Analytical solutions Calculation models Cavity expansion theory Collapsed loess Elastic-Plastic Engineering practices External loads Finite Element Finite element calculations Finite element models Large deformations Limit Load Limited load Pile-soil Surrounding soils Test Theoretical basis
DOI	10.4028/www.scientific.net/AMR.482-484.1645
收录类别	EI
语种	英语
EI入藏号	20121414922896
EI主题词	Piles
ISSN	10226680
来源库	Compendex
分类代码	408.2 Structural Members and Shapes - 483.1 Soils and Soil Mechanics - 921.6 Numerical Methods
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/116115
专题	兰州理工大学土木工程学院
作者单位	1.Gansu Third Construction Group Corporation, Lanzhou 730030, China; 2.School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Tian, Zhi-Hui,Wang, Yao-Jun,Huang, Xue-Feng. Analysis of sinking mechanism and finite element for static pile in collapsed loess region[C]:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany,2012:1645-1649.