Accession Number : ADA327634

Title :   Physical Model Studies for Riprap Design of Tow-Induced Forces.

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS COASTAL HYDRAULICS LA B

Personal Author(s) : Martin, Sandra K.

PDF Url : ADA327634

Report Date : APR 1997

Pagination or Media Count : 261

Abstract : As commercial towboats navigate inland waterways, physical forces in the form of waves and currents are generated. In confined or restricted waterways, these vessel induced forces can have a significant effect on the surrounding environment. Evaluating the impacts of navigation induced forces on the riverine environment has become a topic of serious discussion and intense debate in recent years. Technical studies related to navigation effects investigate the characteristics of the physical forces produced by moving vessels and determine the effects of these forces from both an engineering and a biological perspective. Bank stability, bed stability, sediment transport, maneuverability of the vessel through the waterway, sill heights at locks, and collisions with structures are a few of the reasons evaluation of forces is important from an engineering design perspective. Environmental concerns range from propeller jet turbulence impacts on fish larvae, wave energy on aquatic vegetation, to sediment resuspension and transport in critical shoreline habitat areas and adjacent backwaters.

Descriptors :   *BOATS, *SURFACE NAVIGATION, MANEUVERABILITY, ENVIRONMENTS, IMPACT, BIOLOGY, PHYSICAL PROPERTIES, ENERGY, MOTION, TURBULENCE, SEDIMENT TRANSPORT, ENGINEERING, LIMITATIONS, CONFINEMENT(GENERAL), RIVERS, HABITATS, LARVAE, WAVES, WATERWAYS, FISHES, SHORES, PROPELLERS, AQUATIC PLANTS, TOWED VEHICLES, RIPRAP, INLAND WATERWAYS.

Subject Categories : Marine Engineering
      Underwater and Marine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE