The Numerical Simulation of Moisture Transportation in Unsaturated Concrete of Underwater Tunnel

Yuan Zhu Zhang; Xiao Zhen Li; Xin Jiang Wei

doi:10.4028/www.scientific.net/AMM.275-277.1190

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277The Numerical Simulation of Moisture...

The Numerical Simulation of Moisture Transportation in Unsaturated Concrete of Underwater Tunnel

Abstract:

Moisture transportation is a key factor to affect the long-term safety of underwater concrete tunnel. According to the inside and outside environment of tunnel, the moisture transportation equation in unsaturated concrete of underwater tunnel was raised. Finite difference method was adopted to solve the nonlinear partial differential equation of moisture diffusion. The study shows that the changes of water saturation in concrete are mainly concentrated in the surface of tunnel wall and amplitude is gradually slowing down over time. Saturation changes greater in the outside than inside. The wetting state is more obvious than drying state.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

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1190-1193

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https://doi.org/10.4028/www.scientific.net/AMM.275-277.1190

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Online since:

January 2013

Authors:

Yuan Zhu Zhang, Xiao Zhen Li, Xin Jiang Wei

Keywords:

Finite Difference Method (FDM), Moisture, Underwater Tunnel, Unsaturated Concrete

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