Abstract
ABSTRACT The present review paper offers the learning of steep boulder beds, and other dynamic topographic conditions, for deep understanding of scour catastrophes and recognizing absolute measures to link this key research gap. Though many models exist for silt, sand, and small size coarser bed materials, but no certain model is available universally for scour estimation in bed material above this size. This review paper claims for amplified research into boulder beds, steep bed slopes and dynamic river and stream conditions. Also, the present work highlights the requirement for evolving absolute criteria for such geographical weaknesses. The importance of taking into account complex and dynamic environments in the study of scour failures is also emphasized. Besides, the instant review paper discusses the scientific advancement for more precise and safe predictive models for scour, to discover a guiding tool to a strategy that augments well for the health of hydraulic structures to synchronize with the fundamental philosophies of long-term safety, economy, and functionality.
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