Relationship between the displacement and stability of pile anchor retaining structure considering additional stress

doi:10.16285/j.rsm.2016.2479

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Relationship between the displacement and stability of pile anchor retaining structure considering additional stress
	Zhou, Yong 1,2; Ling, Yong-Qiang 1,2; Yang, Xiao-Hui 1,2
刊名	Yantu Lixue/Rock and Soil Mechanics
	2018-08-10
卷号	39 期号:8 页码:2913-2921
关键词	Anchorages (concrete construction) Anchors Convergence of numerical methods Excavation Foundations Prestressing Professional aspects Safety factor Stability Additional stress Dynamic stability evaluation Engineering practices Horizontal displacements Non-linear relationships Pile anchor retaining structures Retaining structure Theoretical foundations
ISSN号	10007598
DOI	10.16285/j.rsm.2016.2479
英文摘要	The pile anchors are used widely as supporting structure. But in excavation, the stability of foundation with the prestressed anchors and displacement hasn't been solved yet. Additional stress caused by prestressed anchors influences on the stability and displacement of foundation, the expression between prestress and the stability of the pile anchor supporting structure, and the equation of horizontal displacement and structure stability are formulated. In a typical foundation pit, comparisons of the calculation results by general design software show that: 1) The prestress is considered as additional stress to calculate the overall stability safety factor of foundation pit, and the safety factor increases with increasing prestess; there exists a non-linear relationship between the safety factor and prestess; 2) Similarly, the displacement of the pile anchor supporting structure can be calculated by the forementioned way; and horizontal displacement of retaining structure decreases as prestress increases, which presents a non-linear relationship; 3) The expression of relationship between the stability safety coefficient of supporting structure and the horizontal displacement of retaining structure is given, which is more suitable for theory and engineering practice; 4) Compared with the calculation method for stability and displacement of the foundation pit considering prestress, the existing design of the pile anchor supporting structure is conservative and still needs to be validated and corrected according to a large number of engineering practices. 5) We first study the relationship of stability of pile anchor supporting structure and horizontal displacement considering additional stress, which can provide theoretical foundation for dynamic stability evaluation of foundation pit in the process of excavation. © 2018, 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:000444614100025
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150540]
专题	土木工程学院
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Zhou, Yong,Ling, Yong-Qiang,Yang, Xiao-Hui. Relationship between the displacement and stability of pile anchor retaining structure considering additional stress[J]. Yantu Lixue/Rock and Soil Mechanics,2018,39(8):2913-2921.
APA	Zhou, Yong,Ling, Yong-Qiang,&Yang, Xiao-Hui.(2018).Relationship between the displacement and stability of pile anchor retaining structure considering additional stress.Yantu Lixue/Rock and Soil Mechanics,39(8),2913-2921.
MLA	Zhou, Yong,et al."Relationship between the displacement and stability of pile anchor retaining structure considering additional stress".Yantu Lixue/Rock and Soil Mechanics 39.8(2018):2913-2921.