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Title: Soil-structure interaction study of Red River Lock and Dam No. 1 subjected to sediment loading
Authors: Geotechnical Laboratory (U.S.)
United States. Army. Corps of Engineers. Vicksburg District.
Computer-Aided Structural Engineering Project (U.S.)
Ebeling, Robert M., 1954-
Mosher, Reed L.
Abraham, Kevin, 1962-
Peters, John F.
Keywords: Earth pressures
Soil reinforcement
Finite elements
Finite element method
Soil-structure interaction
Red River
Red River Lock and Dam No. 1
Sediment transport
Bed load
Publisher: Information Technology Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical report (U.S. Army Engineer Waterways Experiment Station) ; ITL-93-3.
Description: Technical Report
Abstract: Lock and Dam No. 1 on the Red River Waterway has experienced a serious siltation problem since its completion in 1983. This technical report summarizes the results of a soil-structure interaction analysis of a potentially permanent, low-maintenance solution to this problem, i.e., construction of a reinforced soil retaining wall adjacent to the riverside lock wall. The principal objective of this research was to assess potential lock performance after construction of a reinforced soil retaining wall adjacent to the riverside lock wall. Due to the nature of the problem, the conventional analysis techniques, which are based upon the equations of equilibrium and used in the design of reinforced soil retaining walls, did not provide sufficient information to satisfactorily evaluate performance of this structure with regard to its interaction with the lock and the surrounding foundation soil strate. The general-purpose, nonlinear, incremental construction, finite element computer program, SOILSTRUCT was used to analyze the complex soil-structure interaction by simulating the staged construction. This analysis was conducted in two phases. In Phase 1, the finite element model of the lock was calibrated by using the instrumentation data recorded during the construction and operation of the lock. In Phase 2, the potential lock performance with the construction of a reinforced soil berm adjacent to the riverside lock wall and the soil-structure interaction due to subsequent silt loading was evaluated. The results of the Phase 1 finite element analyses compared favorably with instrumentation readings for the four load cases analyzed. The response of the lock to staged construction of the reinforced soil berm and subsequent staged silt and water loadings of the Phase 2 analyses are summarized herein. Also, recommendations regarding additional design details for the proposed reinforced soil berm are included.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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