Effects of Outlets on Cracking Risk and Integral Stability of Super-High Arch Dams
Joint Authors
Liu, Hongyuan
Hu, Hang
Lin, Peng
Li, Qingbin
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-23
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
In this paper, case study on outlet cracking is first conducted for the Goupitan and Xiaowan arch dams.
A nonlinear FEM method is then implemented to study effects of the outlets on integral stability of the Xiluodu arch dam under two loading conditions, i.e., normal loading and overloading conditions.
On the basis of the case study and the numerical modelling, the outlet cracking mechanism, risk, and corresponding reinforcement measures are discussed.
Furthermore, the numerical simulation reveals that (1) under the normal loading conditions, the optimal distribution of the outlets will contribute to the tensile stress release in the local zone of the dam stream surface and decrease the outlet cracking risk during the operation period.
(2) Under the overloading conditions, the cracks initiate around the outlets, then propagate along the horizontal direction, and finally coalesce with those in adjacent outlets, where the yield zone of the dam has a shape of butterfly.
Throughout this study, a dam outlet cracking risk control and reinforcement principle is proposed to optimize the outlet design, select the appropriate concrete material, strengthen the temperature control during construction period, design reasonable impounding scheme, and repair the cracks according to their classification.
American Psychological Association (APA)
Lin, Peng& Liu, Hongyuan& Li, Qingbin& Hu, Hang. 2014. Effects of Outlets on Cracking Risk and Integral Stability of Super-High Arch Dams. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-19.
https://search.emarefa.net/detail/BIM-1049186
Modern Language Association (MLA)
Lin, Peng…[et al.]. Effects of Outlets on Cracking Risk and Integral Stability of Super-High Arch Dams. The Scientific World Journal No. 2014 (2014), pp.1-19.
https://search.emarefa.net/detail/BIM-1049186
American Medical Association (AMA)
Lin, Peng& Liu, Hongyuan& Li, Qingbin& Hu, Hang. Effects of Outlets on Cracking Risk and Integral Stability of Super-High Arch Dams. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-19.
https://search.emarefa.net/detail/BIM-1049186
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049186