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Experimental Analysis of Deformation Mechanics and Stability of a Shallow-Buried Large-Span Hard Rock Metro Station
Joint Authors
Zhang, Shijie
Li, Wei
Bai, Jiwen
Li, Kexian
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-16
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Based on a certain Qingdao metro station, a large-scale three-dimensional model test has been carried out to investigate the stability of the surrounding rock masses (hard rock) and a large-span metro station under different excavation methods and technologies.
The model test includes an entire section excavation, an arch-cover excavation, and a primary support arch-cover excavation.
Compared with the entire section excavation, the primary support arch-cover method can effectively control the vault settlement and clearance convergence deformation of the surrounding rock masses, reducing them by 15–30%.
The deformation itself goes through three stages: slow, abrupt, and stable.
The excavation of the “middle hole” creates a drastic change in the tunnel vault during the arch-cover excavation; however, the timely application of supports can effectively constrain the range of disturbance caused by the excavation and weaken the degree of load agglomeration of the surrounding rock masses.
American Psychological Association (APA)
Li, Wei& Bai, Jiwen& Li, Kexian& Zhang, Shijie. 2020. Experimental Analysis of Deformation Mechanics and Stability of a Shallow-Buried Large-Span Hard Rock Metro Station. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1121506
Modern Language Association (MLA)
Li, Wei…[et al.]. Experimental Analysis of Deformation Mechanics and Stability of a Shallow-Buried Large-Span Hard Rock Metro Station. Advances in Civil Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1121506
American Medical Association (AMA)
Li, Wei& Bai, Jiwen& Li, Kexian& Zhang, Shijie. Experimental Analysis of Deformation Mechanics and Stability of a Shallow-Buried Large-Span Hard Rock Metro Station. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1121506
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121506