Experimental Study on Deformation Mechanism of a Utility Tunnel in a Ground Fissure Area
Joint Authors
Zhang, Dan
Hu, Zhiping
Lu, Ganggang
Wang, Rui
Ren, Xiang
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-13
Country of Publication
Egypt
No. of Pages
15
Abstract EN
This paper discusses the deformation mechanism of a utility tunnel crossing active ground fissures in Xi’an as observed in a physical model test.
The purpose of this work is to confirm the precise effects of ground fissures on utility tunnels.
The physical simulation experiment is carried out to measure the earth pressure and the strain relationship of the structure and the structural displacement.
The structure appears to have been destroyed by torsion.
The structural deformation located in the tunnel’s footwall was more serious than that in the hanging wall.
However, at the top of the utility tunnel structure, the earth pressure in the footwall was less than that in the hanging wall.
The increased range of the hanging wall at 0.3–1.5 m (the prototype within the range of 22.5 m) and decreased range of the footwall at 0.3–0.8 m (the prototype within the range of 12 m) were basically consistent with changes in the contact pressure at the structure’s bottom.
This was roughly consistent with the main deformation zone of ground fissures mentioned in the specification, with the hanging wall at 0–20 m and footwall at 0–12 mm.
Displacement meter data shows that the structure tends to deform to the lower right as the utility tunnel is “twisted” clockwise.
These observations mark a notable departure from the previously published failure mode of metro tunnels under active ground fissures.
American Psychological Association (APA)
Zhang, Dan& Hu, Zhiping& Lu, Ganggang& Wang, Rui& Ren, Xiang. 2020. Experimental Study on Deformation Mechanism of a Utility Tunnel in a Ground Fissure Area. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1128921
Modern Language Association (MLA)
Zhang, Dan…[et al.]. Experimental Study on Deformation Mechanism of a Utility Tunnel in a Ground Fissure Area. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1128921
American Medical Association (AMA)
Zhang, Dan& Hu, Zhiping& Lu, Ganggang& Wang, Rui& Ren, Xiang. Experimental Study on Deformation Mechanism of a Utility Tunnel in a Ground Fissure Area. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1128921
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128921