Junction Loss Experiments: Laboratory Report - U S Department of Transportation - Books - Createspace - 9781508836353 - March 12, 2015
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Junction Loss Experiments: Laboratory Report

U S Department of Transportation

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Junction Loss Experiments: Laboratory Report

Publisher Marketing: Storm drains generally collect storm runoff from streets, parking lots, and other structures and convey this water to a desired outfall. Access holes (or manholes), which allow staff to inspect, maintain, or repair a segment of the drainage, are usually spaced about 92 to 183 meters (m) (300 to 600 feet (ft)) apart along a given pipe and at every junction between multiple pipes. An access hole, which has at least one inlet pipe and one outlet pipe intersecting it, is usually constructed from a vertically oriented concrete pipe or box that is large enough for a person to enter by removing the cast iron lid and using a ladder. In addition to allowing access, access hole junctions also allow pipes to easily change one or more variables: direction, slope, diameter, and elevation. Estimating the energy loss associated with these access hole junctions is a critical step in designing a drainage network that can handle the incoming flow from various storm events. A preliminary method for determining such losses, based on early results from that study, was published in the Federal Highway Administration's (FHWA) Urban Drainage Design Manual (Hydraulic Engineering Circular No. 22 (HEC 22)). This report summarizes the additional experiments and the data collected and used to evaluate the new junction loss methodology.

Media Books     Paperback Book   (Book with soft cover and glued back)
Released March 12, 2015
ISBN13 9781508836353
Publishers Createspace
Pages 68
Dimensions 216 × 279 × 4 mm   ·   181 g

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