Deformation characteristics of excavation of deep foundation pit at a metro station in Lanzhou

doi:10.11779/CJGE2018S1023

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	Deformation characteristics of excavation of deep foundation pit at a metro station in Lanzhou
	Zhou, Yong 1,2; Ye, Wei-Na 1,2; Gao, Sheng 3
刊名	Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
	2018-05-01
卷号	40 页码:141-146
关键词	Computer software Deformation Excavation Finite element method Foundations Geotechnical engineering Numerical models Settlement of structures Subway stations Subways Deep foundation pit Deformation Characteristics Design and construction Finite element software Ground settlement Ground surfaces Horizontal displacements Simulation and monitoring
ISSN号	10004548
DOI	10.11779/CJGE2018S1023
英文摘要	The horizontal displacement of the pile top, the horizontal displacement of the pile and the settlement of the ground surface in the deep foundation pit of a subway station in Lanzhou are monitored and analyzed. The results show that the horizontal displacement of pile top increases with the excavation of the foundation pit, and that of the pile tip close to the inner support is relatively smooth. With the increase of depth, the horizontal displacement of the pile presents the trend of "being first fast and then slow, first steep and then slow," and there will be a maximum value at 2/3 points from the top of the pile. The more the ground settlement is, the faster the change rate is. Finally, the finite element software Geostudio is used to simulate the excavation of the foundation pit, and the numerical simulation results are compared with the monitoring ones. It is indicated that the results of numerical simulation and monitoring are close, and the law of change is basically the same. The reliability of the design scheme and finite element model is proved. It can provide a good reference for the design and construction of similar projects in the future. © 2018, Editorial Office of Chinese Journal of Geotechnical Engineering. All right reserved.
语种	中文
出版者	Chinese Society of Civil Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114487]
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; 730050, China; 2.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China; 3.China Railway First Survey & Design Institute Group Co., Ltd., Xi'an; 710043, China
推荐引用方式 GB/T 7714	Zhou, Yong,Ye, Wei-Na,Gao, Sheng. Deformation characteristics of excavation of deep foundation pit at a metro station in Lanzhou[J]. Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,2018,40:141-146.
APA	Zhou, Yong,Ye, Wei-Na,&Gao, Sheng.(2018).Deformation characteristics of excavation of deep foundation pit at a metro station in Lanzhou.Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering,40,141-146.
MLA	Zhou, Yong,et al."Deformation characteristics of excavation of deep foundation pit at a metro station in Lanzhou".Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering 40(2018):141-146.