Accession Number : ADA298710

Title :   LEVEEMSU: Analysis Software for Levee Underseepage and Rehabilitation.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB

Personal Author(s) : Gabr, M. A. ; Taylor, Hugh M. ; Brizendine, Anthony L. ; Wolff, Thomas

PDF Url : ADA298710

Report Date : JUN 1995

Pagination or Media Count : 122

Abstract : The computer program LEVEEMSU for analysis of levee underseepage is presented. Analysis algorithms implemented in LEVEEMSU are based on numerical modeling of the flow domain, and subsurface geologic conditions can be idealized from two-layer or three-layer representation with a unit length. With the program LEVEEMSU, levee underseepage analyses can be performed while irregular finite and infinite geometry, variable blanket permeability, lines of relief wells, and landside and riverside ditches and borrow pits are considered. In general, parameter studies with application of the analysis model to problems with ditches and relief wells indicated that the program exhibits consistent behavior. Magnolia Levee, located in Huntington District, and Sny Island Levee, located in Rock Island District, were selected as case studies to demonstrate the application of the two-layer and three-layer models, respectively. Results of the case studies emphasized the importance of accurate characterization of the foundation sublayers. LEVEEMSU provides a convenient analysis tool that should allow designs to approximately model actual field conditions. However, flood protection is a complex system involving design, construction, maintenance, and performance evaluation of levees. The use of LEVEEMSU can provide flexibility in exploring the influence of varying key analysis parameters on the predicted results. Such a flexibility can lead to reevaluation of design criteria with the benefit of reducing cost and improved safety. (MM)

Descriptors :   *PERMEABILITY, *FLOODING, *FLOOD CONTROL, *LEVEES, *HEAD(FLUID MECHANICS), COMPUTER PROGRAMS, MATHEMATICAL MODELS, ALGORITHMS, WATER FLOW, PERMEABILITY, GEOLOGY, COSTS, REPAIR, FLOW RATE, CASE STUDIES, FLOODS, TOLERANCES(MECHANICS), DESIGN CRITERIA, REHABILITATION, SUBSURFACE, SOIL STRUCTURE INTERACTIONS, ISLANDS, WATER WELLS, SEEPAGE, PIEZOMETERS, DITCHES.

Subject Categories : Hydrology, Limnology and Potamology
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE