Stability calculation of micro steel tube mortar composite pile in soil

doi:10.16285/j.rsm.2019.0583

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Stability calculation of micro steel tube mortar composite pile in soil
	Zhu, Yan-Peng 1,2; Yan, Zi-Hao 1,2; Zhu, Yi-Fan 3
刊名	Yantu Lixue/Rock and Soil Mechanics
	2020-04-10
卷号	41 期号:4 页码:1339-1346
关键词	Differential equations MATLAB Mortar Soils Stability Tubes (components) Tubular steel structures Construction period Elastic foundation beam Foundation reinforcement Foundation soils Influence degree Stability calculation Stiffness ratios Theoretical study
ISSN号	10007598
DOI	10.16285/j.rsm.2019.0583
英文摘要	The micro steel tube mortar composite pile is widely used in foundation reinforcement and pile replacement because of its clear force mechanism, simple construction, short construction period and low cost. However, there is rare theoretical study on instability or failure of micro steel tube mortar composite piles with small diameter and large length in soil. Therefore, on the basement of the theory of elastic foundation beam, the differential equation is solved according to the force relationship between the pile and the foundation soil. The specific expression of the bearing capacity for instability of the micro steel tube mortar composite pile is given. By comparing with the actual engineering in situ test, it is found that the theoretical and experimental results are close. An expression calcuating the minimum critical length is given to guide the construction of the project. Through a program writen in Matlab, the instability load refering to different pile lengths is calculated and analyzed under different stiffness ratios between soil and pile, which reflects the influence degree of soil on the instability and restraint force of micro steel tube mortar composite piles. © 2020, Science Press. All right reserved.
WOS研究方向	Engineering
语种	中文
出版者	Academia Sinica
WOS记录号	WOS:000551043400026
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150960]
专题	土木工程学院
作者单位	1.Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 3.College Park, University of Maryland, College Park, MD; 20740, United States
推荐引用方式 GB/T 7714	Zhu, Yan-Peng,Yan, Zi-Hao,Zhu, Yi-Fan. Stability calculation of micro steel tube mortar composite pile in soil[J]. Yantu Lixue/Rock and Soil Mechanics,2020,41(4):1339-1346.
APA	Zhu, Yan-Peng,Yan, Zi-Hao,&Zhu, Yi-Fan.(2020).Stability calculation of micro steel tube mortar composite pile in soil.Yantu Lixue/Rock and Soil Mechanics,41(4),1339-1346.
MLA	Zhu, Yan-Peng,et al."Stability calculation of micro steel tube mortar composite pile in soil".Yantu Lixue/Rock and Soil Mechanics 41.4(2020):1339-1346.