Model Experimental Study on the Seepage and Failure Features of Tunnel under Wetting-Drying Alternation with Increasing Water Pressure
Joint Authors
Zhu, Wenxin
Su, Haijian
Jing, Hongwen
Guo, Qingzhen
Feng, Yujie
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Wetting-drying alternation caused by seasonal rainfall and water fluctuation has a negative effect on the rock mass.
Model experiments were conducted in this paper to investigate the role of wetting-drying alternation on the seepage and failure features of a tunnel.
Water-bearing structure was located in the lateral position of tunnel.
The stratum thickness between the tunnel and water-bearing structure was ranged from 20 to 100 mm.
The results showed that, with an increase in the wetting-drying alternation number, the pore water pressure increases gradually.
The critical water pressure also increases gradually with the increasing thickness of water-resisting stratum.
With the increase of the stratum thickness, the permeable area is gradually widened and the water storage capacity becomes stronger.
The failure mode of water-resisting stratum under geostress and water pressure can be summarized as two types: fracture failure (thickness of 20 mm) and slippage failure (thickness between 40 and 100 mm), respectively.
American Psychological Association (APA)
Su, Haijian& Feng, Yujie& Guo, Qingzhen& Jing, Hongwen& Zhu, Wenxin. 2020. Model Experimental Study on the Seepage and Failure Features of Tunnel under Wetting-Drying Alternation with Increasing Water Pressure. Geofluids،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1165888
Modern Language Association (MLA)
Su, Haijian…[et al.]. Model Experimental Study on the Seepage and Failure Features of Tunnel under Wetting-Drying Alternation with Increasing Water Pressure. Geofluids No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1165888
American Medical Association (AMA)
Su, Haijian& Feng, Yujie& Guo, Qingzhen& Jing, Hongwen& Zhu, Wenxin. Model Experimental Study on the Seepage and Failure Features of Tunnel under Wetting-Drying Alternation with Increasing Water Pressure. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1165888
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1165888