Water Transport in Unsaturated Cracked Concrete under Pressure
Joint Authors
Zhang, Yuanzhu
Zhang, Siming
Wei, Gang
Wei, Xinjiang
Jin, Liqiao
Xu, Kuixin
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-16
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
In order to analyze the process of hydraulic water infiltrating cracked concrete of underwater tunnels, the equation of water transport in unsaturated cracked concrete under pressure was proposed according to the double-porosity medium model.
Penetration tests on prefabricated cracked concrete blocks were conducted, and then the influence of hydraulic pressure, initial saturation, and crack width on water transport was studied.
The results show that the larger the water pressure, the lower the initial saturation, and the wider the crack width, then the greater the penetration depth, which can be reasonably explained according to water motion theoretical models in this study.
Moreover, the TOUGH2 software was used to simulate the change and distribution of saturation, driving potential, and water velocity of unsaturated cracked concrete, which further proved the experimental results and theoretical analysis.
It reflects that both pressure potential and matric potential are the driving force of water transport in underwater cracked concrete, and the driving force will be converted with the change of concrete saturation.
In addition, crack width is positively correlated with concrete permeability.
American Psychological Association (APA)
Zhang, Yuanzhu& Zhang, Siming& Wei, Gang& Wei, Xinjiang& Jin, Liqiao& Xu, Kuixin. 2019. Water Transport in Unsaturated Cracked Concrete under Pressure. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1116225
Modern Language Association (MLA)
Zhang, Yuanzhu…[et al.]. Water Transport in Unsaturated Cracked Concrete under Pressure. Advances in Civil Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1116225
American Medical Association (AMA)
Zhang, Yuanzhu& Zhang, Siming& Wei, Gang& Wei, Xinjiang& Jin, Liqiao& Xu, Kuixin. Water Transport in Unsaturated Cracked Concrete under Pressure. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1116225
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116225