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portada Junction Loss Experiments: Laboratory Report
Type
Physical Book
Publisher
Language
English
Pages
68
Format
Paperback
Dimensions
27.9x21.6x0.4 cm
Weight
0.18 kg.
ISBN13
9781508836353

Junction Loss Experiments: Laboratory Report

U. S. Department of Transportation (Author) · Federal Highway Administration (Author) · Createspace · Paperback

Junction Loss Experiments: Laboratory Report - Administration, Federal Highway ; Transportation, U. S. Department of

New Book Imported to Taiwan
Delivery: 04 Nov - 17 Nov Shipping: 16 to 20 business days.
NT$ 976
NT$ 976

Synopsis "Junction Loss Experiments: Laboratory Report"

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.

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