A Study on the Non-Saturated Concrete of Subsea Tunnel

Article Preview

Abstract:

The objective of this study is to investigate the water seepage in unsaturated concrete under pressure through theoretical derivation. To establish the theoretical mode of water pressure and seepage velocity various with location and time. Finally, a formula about penetration depth is derived. And it is more practical. Meanwhile, analysis is made about the effect of the water pressure, the strength grade, permeability and relative permeability and other factors on the flow velocity and penetration depth.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1618-1624

Citation:

Online since:

May 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Dunagan.W H.Methods for measuring the passage of water through concrete [J].Proceedings of the American society for Testing Materials. Vol.39,1 939:866-880.

Google Scholar

[2] Richards L. A. Capillary conduction of liquid through porous mediums [J].Physics.1931 (1):318-333.

DOI: 10.1063/1.1745010

Google Scholar

[3] Chunqiu Li. Moisture transport in concrete cover under drying-wetting cycles: theory, experiment and modeling[J].Tounal of The Chinese ceramic Society,2010,38(17):1151-1159(In Chinese)

Google Scholar

[4] Chunhua Shen. Research on water transport and kinetics in cement based materials [J]. Journal of Wuhan University of Technology, 2007,29(9):84-87. (In Chinese)

Google Scholar

[5] Chong Chen. Study on durability of underground concrete structures in chloride environment[D].Shanghai: Tongji university,2009(In Chinese)

Google Scholar

[6] Chunxiang Qian, WANG Yu-jiang. Research of water seepage flow in concrete [J]. Journal of Building Materials, 2009, 12(5):515-518. (In Chinese)

Google Scholar

[7] An analytical study on the water penetration and diffusion into concrete under water pressure [J]. Construction and building materials, 2011, 25:99-108.

DOI: 10.1016/j.conbuildmat.2010.06.052

Google Scholar

[8] VAN Genuchten M T. A closed-form equation for predicting the hydraulic conductivity of unsaturated soils [J]. Soil Sci Soc Am J, 1980, 44: 892–898.

DOI: 10.2136/sssaj1980.03615995004400050002x

Google Scholar