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Mechanical Analysis of the Circular Tunnel considering the Interaction between the Ground Response Curve and Support Response Curve
Joint Authors
Liu, Hongyan
Su, Tianming
Peng, Hanyu
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-26
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The viewpoint that the ground initial elastic displacement and the interaction between the ground response curve (GRC) and support response curve (SRC) in the surrounding rock should be considered at the same time in the mechanical analysis of the circular tunnel is proposed, and its solution method is also established.
Meanwhile, in order to consider the effect of the intermediate principle stress, Drucker-Prager criterion is introduced to describe the yield property of the surrounding rock.
The calculation example indicates that the final radial displacement of the tunnel circumference will increase when the ground initial elastic displacement in the surrounding rock is considered before the support structure is applied, which indicates that it is necessary to consider the ground initial elastic displacement in the surrounding rock before the support structure is applied.
With increasing the support resistance force and the initial field stress, the plastic zone radius in the surrounding rock and the radial displacement of the tunnel circumference will decrease and increase, respectively, while with increasing the rock internal friction angle and cohesion, the plastic zone radius in the surrounding rock and the radial displacement of the tunnel circumference both decrease.
Meanwhile, with the stress Lode parameter increasing from −1 to 1, the plastic zone radius in the surrounding rock and the radial displacement of the tunnel circumference both greatly decrease and then slightly increase.
It indicates that the intermediate principle stress has some effect on the calculation results.
American Psychological Association (APA)
Su, Tianming& Peng, Hanyu& Liu, Hongyan. 2018. Mechanical Analysis of the Circular Tunnel considering the Interaction between the Ground Response Curve and Support Response Curve. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1209042
Modern Language Association (MLA)
Su, Tianming…[et al.]. Mechanical Analysis of the Circular Tunnel considering the Interaction between the Ground Response Curve and Support Response Curve. Mathematical Problems in Engineering No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1209042
American Medical Association (AMA)
Su, Tianming& Peng, Hanyu& Liu, Hongyan. Mechanical Analysis of the Circular Tunnel considering the Interaction between the Ground Response Curve and Support Response Curve. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1209042
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209042