Please use this identifier to cite or link to this item:
|Title:||A procedure for computation of the total river sand discharge and detailed distribution, bed to surface|
|Authors:||Toffaleti, Fred B.|
|Publisher:||United States. Army. Corps of Engineers. Committee on Channel Stabilization|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Technical report (United States. Army. Corps of Engineers. Committee on Channel Stabilization) ; no. 5.|
Summary: In the design of multipurpose, flood-control, navigation, channel rectification, and miscellaneous hydraulic structures projects a problem of sedimentation is frequently posed. In order to determine the extent to which this may be detrimental to project efficiency or to judge remedial measures or allowances that must be made, it is of immediate interest to have some knowledge as to the rate or magnitude of occurrence of sedimentation. A mathematical procedure offers a practical and reasonably accurate resolution of these questions. This is the objective of this report. The proposed procedure for an analytic determination of sand transport is not new in basic concept, but offers a readily understandable approach to a seemingly complex process. It is especially adaptable to computer programming, requiring only a modicum of input or given data from which the sand fractions of the total sand discharge are both separately and in combination completely described quantitatively and in distribution from bed to water surface. It has been tested by application and comparison with observed data in all types of rivers, small to large, under a full range of flow conditions, and in model flume experiments conducted under widely varying flow conditions with bed sands varying widely in size and size distribution. It is considered that the results by this procedure are sufficiently accurate to warrant its use in many types of studies involving quantitative sand transport, design of channels, channel regulation works, and the assessment of probable effects of channel modifications. It further offers a means of greatly reducing the cost, time, and manpower requirements in both field and laboratory operations in connection with continuing sediment observation stations.
|Appears in Collections:||Committee on Channel Stabilization|