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Author: Richard E. Chambers
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 550
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Book Description
Author: Richard E. Chambers
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 550
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Book Description
Author: Timothy J. McGrath
Publisher: Transportation Research Board
ISBN: 0309117763
Category : Pipe, Plastic
Languages : en
Pages : 310
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Book Description
This report contains the findings of research performed to develop a recommended load and resistance factor design (LRFD) specification for thermoplastic pipe used in culverts and drainage systems for highway structures. The report details the research performed and includes a recommended LRFD design specification, a quality assurance specification for manufactured thermoplastic pipe, and the results of supporting analyses.
Author:
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 688
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Book Description
Author: David C. Wyant
Publisher: Transportation Research Board
ISBN: 0309069203
Category : Culverts
Languages : en
Pages : 82
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Book Description
TRB's National Cooerative Highway Research Program (NCHRP) Synthesis 303: Assessment and Rehabilitation of Existing Culverts summarizes the state of the practice of pipe assessment, the selection of appropriate repair or rehabilitation methods, and the management aspects of a pipe program.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 594
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Lyle K. Moulton
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 180
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Book Description
Author:
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 116
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Book Description
Author: Ernest W. Tollner
Publisher: John Wiley & Sons
ISBN: 1118928725
Category : Science
Languages : en
Pages : 536
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Book Description
This fully revised edition provides a modern overview of the intersection of hydrology, water quality, and water management at the rural-urban interface. The book explores the ecosystem services available in wetlands, natural channels and ponds/lakes. As in the first edition, Part I examines the hydrologic cycle by providing strategies for quantifying each component: rainfall (with NOAH 14), infiltration, evapotranspiration and runoff. Part II examines field and farm scale water quality with an introduction to erosion prediction and water quality. Part III provides a concise examination of water management on the field and farm scale, emphasizing channel design, field control structures, measurement structures, groundwater processes and irrigation principles. Part IV then concludes the text with a treatment of basin-scale processes. A comprehensive suite of software tools is available for download, consisting of Excel spreadsheets, with some public domain models such as HY-8 culvert design, and software with public domain readers such as Mathematica, Maple and TK solver.
Author: Thomas R. Hunt
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 104
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Book Description
The first Colorado Department of Transportation (CDOT) installation of polyethylene pipes for culvert use was in 1988, on SH 50, north of Olathe. Five to ten feet of well compacted in-situ material was used as backfill. No obvious deflections occurred in the pipe during or after construction, or as a result of in-service live loads. After three years of service, the pipes have not cracked, melted, or worn, and are in good overall condition. One culvert, however, burned for about ten feet into one end as a result of the ignition of sawdust that had collected in it from a nearby sawmill. This section of pipe was replaced. A literature search found that with proper backfill, loads of 100 ft of fill could safely be supported. Some pipes, however, were reported to have deformed excessively even with small loads. These were for the most part 12 in. and 15 in. diameter pipes that had a thinner wall, and were not well supported. The main advantages of polyethylene pipes are: light weight, easier installation, corrosion resistance, and relatively good aesthetic qualities. Plastic pipe is a current option for use in the 1991 Colorado Standard Specifications. In most cases it will be left up to the contractor to determine which pipe material to use to meet the specifications for each particular project. Adequate wall thicknesses and corrugations should be specified. Only Class 1 or better material, compacted in thin lifts to 95% maximum density, should be used. Extra care should be taken to compact under the haunches. With care, fills of at least 50 ft are possible.
Author: United States. Federal Highway Administration
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 516
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Book Description
