Accession Number : AD0757412

Title :   Culvert Tainter Valves, New Lock No. 19, Mississippi River: Hydraulic Model Investigation.

Descriptive Note : Technical rept. Jul 57-Jul 58,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Ables,J. R. , Jr. ; Murphy,T. E.

Report Date : JUN 1951

Pagination or Media Count : 67

Abstract : Trial operations of the filling and emptying system of new Lock No. 19 on the Mississippi River at Keokuk, Iowa, revealed severe load pulsations on the culvert valves, which resulted in intermittent reversals in loading on the valve hoist and a consequent clattering in the operating machinery. These pulsations were so severe at large valve openings that it was deemed risky to operate the valves at openings greater than about two-thirds. A 1:12-scale model of one of the reverse-tainter type culvert valves was used to study causes of load reversals on the hoist and to develop valve modifications that would eliminate clattering and permit normal operation of the valves.

Descriptors :   (*DAMS, HYDRAULIC VALVES), (*HYDRAULIC MODELS, DAMS), MODEL TESTS, FLUID FLOW, HYDROSTATIC PRESSURE, LOADS(FORCES), STATISTICAL DATA, TABLES(DATA), IOWA

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE