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Title: Analysis of data from instrumentation program, Port Allen Lock
Authors: Sherman, Walter C.
Trahan, Charles Curtis.
Keywords: Locks (Hydraulic engineering)
Hydraulic measurements
Hydraulic engineering--Instrumentation
Port Allen (La.)
Publisher: U.S. Army Engineer Waterways Experiment Station.
Series/Report no.: Technical Report (U.S. Army Engineer Waterways Experiment Station) ; no. S-68-7
Abstract: Port Allen Lock is a reinforced concrete U-frame structure located on the west bank of the Mississippi River near Baton Rouge, La. The lock chamber was designed for a trapezoidal distribution of base pressure. This distribution was determined by a trial method in which the plastic and elastic deformation of the base slab and the corresponding deformation of soil foundation were computed for various assumed base pressure distributions until the desired agreement between structure and soil deformations was obtained. The lock chamber was instrumented to obtain engineering data for use in design of similar structures and to determine the validity of the design assumptions. Measurements were made of earth and hydrostatic pressures beneath the base slab and along the walls of the lock and of stresses and strains within the base slab and walls of the lock. The settlement of the lock was determined at various locations, and deflections of the walls were determined by means of wall deflection pipes and a deflectometer. Observed rebounds were greater than those predicted in design: observed settlements were less than those predicted in design. Observed base pressures differed from the total structure load, and the difference was attributed to frictional soil forces acting on the outer sides of the lock. Computations of base pressures and moments from theoretical consideration of a beam on an elastic foundation were in poor agreement with actual base pressures and moments computed from observed loads.
Description: Technical Report
Gov't Doc #: Technical Report S-68-7
Rights: Approved for Public Release; Distribution is Unlimited
Size: 249 pages / 41.13 MB
Types of Materials: PDF/A
Appears in Collections:Technical Report

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