.................................................................................................................. ii ACKNOWLEDGEMENTS ............................................................................................iv LIST OF TABLES ...................................................................................................... viii LIST OF FIGURES ...............................

An assessment of maximum scour depth downstream of grade control structure is essential for its proper planning, design and management. Most of the scour depth prediction formulae available in the literature have been developed based on the analysis of the laboratory/field data using the statistical method such as the regression method (RM). The alternative recent approaches such as artificial ...

an attempt was made to develop a method for sizing stable riprap around bridge piers based on a huge amount of experimental data, which is available in the literature. all available experimental data for circular as well as round-nose-and-tail rectangular piers were collected. the data for rectangular piers, with different aspect ratios, aligned with the flow or skewed at different angles to th...

Throughout the lifespan of a bridge, morphological changes in riverbed affect variable action-imposed loads on structure. This emphasizes need for accurate and reliable data that can be used model-based projections targeted identification risk associated with bridge failure induced by scour. The aim this paper is to provide an analysis scour depth estimation large sand-bed rivers under clear wa...

When depth of flow past a river bridge exceeds opening under the bridge, the flow under the bridge becomes pressurized. The water is directed downward and under the bridge deck, causing increase in velocity and shear stress on the bed thereby increasing bed scour. This is termed as Pressure Flow Scour. The present study investigates the phenomenon of pressure flow scour resulting from a submerg...

Local scour is a common threat to structures such as bridge piers, abutments, and dikes that are constructed on natural rivers. To reduce the risk of foundation failure, understanding local phenomenon around hydraulic important. The well-predicted depth can be used reference for structural design river management. Numerical simulation relatively efficient at studying these issues. Currently, tw...

Scour around bridge piers is considered as one of the major factors which causes failure bridges in United States. An undetected scour can affect stability bridge, eventually leading to collapse bridge. The experimental investigation a pier using non-contact measuring method carried out this research. A green laser-based ranging technique performed on prefabricated hole study influencing abilit...