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Author: Kevin L. Carey
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 92
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Book Description
U.S. Army Cold Regions Research and Engineering Laboratory field inspections and data collection on icing conditions and methods of control prior to 1966 provided background to the overall study. A literature survey, covering primarily American and Russian experience, and a survey by questionnaire of highway maintenance forces in Alaska provided background to a field study of icing prevention and control covering four winter seasons in Alaska. Climatological, culvert temperature, ground temperature and hydrologic data were collected at Grenac, Steele and Flume Creeks near Fairbanks, Alaska, to extend understanding of icing phenomena. Field trials were conducted at Bear Creek, Grenac Creek, Steele Creek, Moose Creek and Gakona Spring to test three expedient techniques for controlling icing: electric heating cables, channel improvement and channel covers.
Author: Kevin L. Carey
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 92
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Book Description
U.S. Army Cold Regions Research and Engineering Laboratory field inspections and data collection on icing conditions and methods of control prior to 1966 provided background to the overall study. A literature survey, covering primarily American and Russian experience, and a survey by questionnaire of highway maintenance forces in Alaska provided background to a field study of icing prevention and control covering four winter seasons in Alaska. Climatological, culvert temperature, ground temperature and hydrologic data were collected at Grenac, Steele and Flume Creeks near Fairbanks, Alaska, to extend understanding of icing phenomena. Field trials were conducted at Bear Creek, Grenac Creek, Steele Creek, Moose Creek and Gakona Spring to test three expedient techniques for controlling icing: electric heating cables, channel improvement and channel covers.
Author: Kevin L. Carey
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 137
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Book Description
Author: Kevin L. Carey
Publisher:
ISBN:
Category : Ice prevention and control
Languages : en
Pages : 110
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Book Description
Discusses progress on main objectives of study including: "1. A literature survey on icings and related topics ..., 2. Compilation and analysis of questionnaires, which were distributed to maintenance personnel of the Alaska Department of Highways and the Alaska Railroad, 3. Reduction and analysis of meteorological data and culvert temperature data acquired during the 1966-67 winter season at three icing sites near fairbanks, [and] 4. Field study of the instrumented icing sites near Fairbanks and a reconnaissance of icing problems areas along a portion of the highway system of Interior Alaska."--Leaf [1].
Author: Kevin L. Carey
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 68
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Book Description
The bibliography contains 86 entries, for which annotations are given for all but one. These entries were selected from references collected during a literature survey which formed a part of the cooperative study on the prevention and control of culvert and road icings. The objective of the literature survey was to obtain information on all aspects of icing phenomena: causes of occurrence of river, spring, and seepage icing; problems created by icings in connection with roads, railroads, airfields, and their drainage facilities; and methods, both active and passive, of combatting icings and associated problems. Of the total number of references collected, about 85% deal wholly or in part with icing, while the remaining 15% cover subjects which are pertinent to the study of icing such as permafrost, hydrology, and ice-control techniques.
Author: David A. Gaskin
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 56
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Book Description
A laboratory study was made to investigate the use of electric heat cables to counteract culvert icing. An automatic system for producing a thaw tunnel of a preselected diameter was developed and tested. An 80-in.-long, 1 ft-diam culvert with a 10 ft copper sheath heating cable modeled a typical Alaskan installation. Tests were made to evaluate several continuous power levels, a short-term percentage timer, and the automatic system. Maximum efficiency (cross section produced/unit energy input) occurred when the cable was operated continuously at its maximum permissible power level. The short-term timer system was less efficient than applying the same amount of energy continuously. The automatic system performed well in the laboratory, but may need additional design work to ensure high reliability in field applications. (Modified author abstract).
Author: Herman E. Londagin
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 21
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Book Description
Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 976
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Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 284
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1814
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Book Description
Author: George D. Ashton
Publisher: Water Resources Publication
ISBN: 9780918334596
Category : Technology & Engineering
Languages : en
Pages : 504
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Book Description
