LEVSEEP: Analysis Software for Levee Underseepage and Rehabilitation.
Abstract
The computer program LEVSEEP version 3.0 is presented for use in the analysis of levee underseepage. This version of the program includes a two-layer analysis model for levees with a top blanket over a pervious foundation. The software calculates seepage flow and substratum pressure for either physical and geometric properties (initial conditions) or field piezowmeter readings; analyzes the effects of various control measures (namely, landside berms, riverside blankets, cutoffs, and relief wells); plots cross sections, piezometer data, and control measures; provides quantity and cost estimates of each of these control measure alternatives; and gives a complete summary of all calculations. The procedures for berm analysis employed within LEVSEEP reflect the current Corps guidance discussed in EM 1110-2-1913 (Headquarters, Department of the Army 1978). The procedures for riverside blanket analysis are as presented in TM 3A24 (U.S. Army Engineer Waterways Experiment Station 1956). Procedures for analysis of cutoffs are based on the method of fragments as presented by Harr (1962). The procedures for relief well system analysis reflect Corps guidance as presented in EM 1110-2-1913. Specific equations and procedures used for well analysis were taken from TM 3A24 and Engineer Bulletin 55-11 (Headquarters, Department of the Army 1955). The well procedure is for infinite, partially penetrating, or fully penetrating well systems under artesian flow; it does not apply to finite length systems or pumped systems. Example problems and case studies are presented LEVSEEP provides a convenient analysis tool that should allow designers to approximately model actual field conditions. However, flood protection is a complex system involving design, construction, maintenance, and performance evaluation of levees.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1995
- Accession Number
- ADA300642
Entities
People
- Anthony L. Brizendine
- Hugh M. Taylor Jr.
- M. A. Gabr