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Revised Clear-water and Live-bed Contraction Scour Analysis
Peter Frederick Lagasse
出版Transportation Research Board, 2021
ISBN03096740779780309674072
URLhttp://books.google.com.hk/books?id=yCGmzgEACAAJ&hl=&source=gbs_api
註釋Bridge waterways commonly narrow or constrict natural channels, forcing water to flow through a contracted area, thereby increasing the magnitudes of velocity and turbulent kinetic energy of flow passing through the waterway. If these increases cause erosion of the waterway boundaries, the contracted section may scour. The TRB National Cooperative Highway Research Program's NCHRP Research Report 971: Revised Clear-Water and Live-Bed Contraction Scour Analysis develops live-bed and clear-water contraction scour equations suitable for use in risk-based bridge design encompassing a wide range of hydraulic conditions, including varying contraction ratios. Supplemental to the report is NCHRP Web-Only Document 294: Revised Clear-Water and Live-Bed Contraction Scour Analysis Training Manual and a Presentation.