Accession Number : AD0756137

Title :   Operating Forces on Sector Gates under Reverse Heads: Hydraulic Model Investigation.

Descriptive Note : Final rept. Oct 68-May 69,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Oswalt,Noel R.

Report Date : MAR 1970

Pagination or Media Count : 35

Abstract : Several sector gate locks in southern Louisiana (Bayou Boeuf, Freshwater, and Calcasieu) have experienced operational difficulties during reverse heads of 1.0 ft or greater. A 1:20-scale model with one set of gate leaves was constructed to measure forces acting on sector gate during reverse heads, develop feasible modifications for elimination of stall at existing structures, and test a gate of new design for use in future structures. Observation of free gate movement (original Bayou Boeuf gate) revealed forces tending to resist opening of the gate under reverse head conditions and to open the gate under normal head conditions. Model force measurements were made using a plus or minus 20-lb load cell rigidly connected to the center of a free gate leaf on a tangent and 42.5 ft from the pintle. (Author)

Descriptors :   (*DAMS, HYDRAULIC MODELS), (*INLAND WATERWAYS, DAMS), FORCE(MECHANICS), LOADS(FORCES), HYDRODYNAMICS, MODEL TESTS, LOUISIANA

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE