Application of Constant Resistance and Large Deformation Anchor Cable in Soft Rock Highway Tunnel
Joint Authors
Tao, Zhigang
Sun, Xiaoming
Zhang, Bo
Gan, Li
Zhao, Chengwei
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-31
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
Muzhailing Highway Extra-long Tunnel in Lanzhou, Gansu Province, China, belongs to the soft rock tunnel in the extremely high geostress area.
During the construction process, large deformation of the soft rock occurred frequently.
Taking the no.
2 inclined shaft of Muzhailing tunnel as the research object, an NPR (negative Poisson’s ratio) constant resistance and large deformation anchor cable support system based on high prestress force, constant resistance, and releasing surrounding rock pressure was proposed.
The characteristics of the surrounding rock under the steel arch support and NPR anchor cable support were compared and analyzed by using 3DEC software.
A series of field tests were conducted in the no.
2 inclined shaft, and the rock strength, displacement of the surrounding rock, deep displacement of the surrounding rock, internal force of steel arch, and axial force of anchor cable were measured to study the application effect of the NPR anchor cable support system in tunnel engineering.
Moreover, the 3DEC numerical simulation results were compared with the field test results.
The research results show that the application of NPR constant resistance and large deformation anchor cable support system in tunnel engineering has achieved good results, and it plays a significant role in controlling the large deformation of the tunnel surrounding rock.
American Psychological Association (APA)
Sun, Xiaoming& Zhang, Bo& Gan, Li& Tao, Zhigang& Zhao, Chengwei. 2019. Application of Constant Resistance and Large Deformation Anchor Cable in Soft Rock Highway Tunnel. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-19.
https://search.emarefa.net/detail/BIM-1116195
Modern Language Association (MLA)
Sun, Xiaoming…[et al.]. Application of Constant Resistance and Large Deformation Anchor Cable in Soft Rock Highway Tunnel. Advances in Civil Engineering No. 2019 (2019), pp.1-19.
https://search.emarefa.net/detail/BIM-1116195
American Medical Association (AMA)
Sun, Xiaoming& Zhang, Bo& Gan, Li& Tao, Zhigang& Zhao, Chengwei. Application of Constant Resistance and Large Deformation Anchor Cable in Soft Rock Highway Tunnel. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-19.
https://search.emarefa.net/detail/BIM-1116195
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116195