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Enhanced Abutment Scour Studies for Compound Channels
Experimental results and analyses are given in this report on bridge abutment scour in compound channels. Experiments were conducted in a laboratory flume with a cross section consisting of a wide floodplain adjacent to a main channel. The embankment length, discharge, sediment size, and abutment shape were varied, and the resulting equilibrium scour depths were measured. Water-surface profiles, velocities, and scour-hole contours were also measured. In the report, a methodology is developed for estimating abutment scour that takes into account the redistribution of discharge in the bridge contraction, abutment shape, sediment size, and tailwater depth. The independant variables in the proposed scour formula are evaluated at the approach-channel cross section and can be obtained froma one-dimensional water-surface profile computer program such as the Water-Surface Profile Program (WSPRO). The proposed scour evaluation procedure is outlined and illustrated, including consideration of the time required to reach equilibrium scour. The proposed methodology is applied to two cases of measured scour in the field.
The Wisden Book of Test Cricket, 1877-1977
The Wisden Book of Test Cricket, first published in 1979, is well established as an invaluable and unique source of reference essential to any cricket library. This new volume includes full scorecards and match reports from 1877 to 1977. Originally edited by Bill Frindall, this new volume brings collectors' libraries up to date, ensuring they have a complete and accurate record - essential for any truly self-respecting cricket enthusiast.
Handbook
None
Transactions of the American Society of Civil Engineers
Vols. 29-30 include papers of the International Engineering Congress, Chicago, 1893; v. 54 includes papers of the International Engineering Congress, St. Louis, 1904.
