Document Type

Thesis - Open Access

Award Date

1962

Degree Name

Master of Science (MS)

Department

Agricultural Engineering

Abstract

Two major types of flow exist for any short culvert: 1) flow with outlet control and 2) flow with inlet control. Under outlet control, the elevation of the tailwater in the outlet channel and the slope, roughness, and length of culvert are of primary importance. Inlet control involves the cross-sectional area of the culvert, the inlet geometry, and the amount of headwater at the entrance. Discharge capacity of pipe flow for the varieties of shapes of inlets with respect to the headwater above the crown of the pipe were tested. Inlets with 1:1, 2:1, and 3:1 sliced ends were chosen. Series of tests were conducted for the above inlets in direct and inverted position. Inlets with stepped bevel with 2:1 and 3:1 slope with and without end plates were tested. Tests on all mentioned inlet types were conducted for pipe barrel slope of 0%, 2% (mild slope), and 4% (steep greater than critical slope). Overall, tests showed that the capacity of the pipe culvert for the sliced end, either direct or inverted position, increased when it was compared with discharge for the square ended pipe inlet. However, inverted inlets showed the best performance for this study.

Library of Congress Subject Headings

Culverts
Hydraulics
Road drainage

Description

Includes bibliographical references

Format

application/pdf

Publisher

South Dakota State University

Comments

No Copyright - Non-Commercial Use Only
http://rightsstatements.org/vocab/NoC-NC/1.0/

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