Accession Number : AD0734890

Title :   Operating Forces on Sector Gates under Reverse Heads. Appendix A. Results of Supplemental Tests. Hydraulic Model Investigation.

Descriptive Note : Technical rept. Apr-May 71,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Oswalt,Noel R. ; Murphy,Thomas E.

Report Date : DEC 1971

Pagination or Media Count : 21

Abstract : Subsequent to the model tests discussed in the basic report, certain revisions were made to the improved sector gate for structural reasons. In these revisions the curved horizontal girders were placed in back of the skin-plate ribs so that the skin plate would not act as part of a main beam, and the timber fenders were extended to within 8 in. of the full radius of the gate for safety reasons. The first gate incorporating these revisions was designed for replacement of the existing gates at Vermilion Lock. One leaf of the model of the improved sector gate was modified to reproduce the Vermilion gate at the nose of the gate leaf. This gate leaf was tested at a scale of 1:20 in the facilities and by the procedures described in the basic report. (Author)

Descriptors :   (*DAMS, *HYDRAULIC MODELS), INLAND WATERWAYS, SECONDARY FLOW, FORCE(MECHANICS), MODEL TESTS

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE