122 resultados para Transport mode
em University of Michigan
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As presently used, the immersed weight rate, I sub l, is the volume rate, Q, of longshore transport, multiplied by a constant. For use in engineering problems, I sub l must be converted back to the equivalent Q. The I sub l formulation may be important where the unit weight of sand differs significantly from the unit weight of sand at the open-coast sites contributing data to the design curve. Increase in void ratio may result in a 10- to 20-percent increase in actual (as compared to predicted) shoaling volumes where sand accumulates in protected water. Void ratio should be measured in field studies of longshore transport.
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Mode of access: Internet.
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Signed: F. Gore Browne, Walter W. Berry, W.J. Davis, W.A. Jepson, L.A. Martin, W.M. Acworth
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"April 1981."
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A comprehensive engineering analysis of the coastal sediment transport processes along a 42-kilometer segment of the North Carolina shoreline from Wrightsville Beach to Fort Fisher is presented. Included in the analysis is an interpretation of the littoral processes, longshore transport, and the behavior and success of beach nourishment projects at Wrightsville Beach and Carolina Beach, North Carolina. The historical position of the MLW, MSL, and MHW contours, relative to a fixed base line, is plotted for the period between 1964 and 1975. An equivalent volumetric erosion or accretion between successive surveys is determined by multiplying the average excursion distance of the contours by a constant of proportionality. The plots of excursion distance versus time for the MLW, MSL, and MHW contours also show the time response of the beach fills. This response is described by a mathematical function. The alongshore components of wave-induced energy flux are also determined within the study area through wave refraction analysis. This information, together with the information on volumetric change, is used in a sediment budget analysis to determine the coefficient of alongshore sediment transport and the inlet trapping characteristics. (Author).
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Mode of access: Internet.
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Mode of access: Internet.
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"EPA-905/9-79-004."
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"February 1979."
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Final report, January 1979.
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At head of title, no. 1- : Official statistics, commonwealth of Australia. Commonwealth Bureau of census and statistics, Melbourne.
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"This study was prepared principally by James A. Little ... Henry M. Cunningham...and Chester E. Stiles."
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Federal Highway Administration, Structures and Applied Mechanics Division, Washington, D.C.
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Mode of access: Internet.
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Cover title.