Identifier

etd-0712102-112020

Degree

Master of Science in Civil Engineering (MSCE)

Department

Civil and Environmental Engineering

Document Type

Thesis

Abstract

One of the main causes of levee failure is seepage through levee. This seepage can cause weakening in the levee structure, which in turn can cause sudden levee failure or overtopping of the levee due to levee depression. The purpose of this study is to determine the transient head on the seepage path due to changing water level during flood period. Transient seepage problems are very important as critical condition can occur during this time rather than during steady state condition. Seepage path through a levee can be predicted using the Boundary Fitted Coordinate (BFC) system method. The physical coordinate system is transformed into computational curvilinear coordinate system by using this method. One advantage of using this method is the grid generated can fit itself into the boundary of the system. The model developed is tested on a steady state rectangular dam for verification by comparing it with the analytical solutions. The model is then implemented on an unsteady state problem to determine the location of free surface and seepage face for several time steps until steady state is reached.

Date

2002

Document Availability at the Time of Submission

Release the entire work immediately for access worldwide.

Committee Chair

Donald Dean Adrian

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