Study on the Threshold of Sediment Transport and Erosion-Sedimentation in the Yellow River Flood

Author: Liang Zhiyong
Publisher:
Publish Date: 2004-12-01
Features: This book focuses on the sediment transport and scour-deposition thresholds (critical water-sediment conditions and boundary conditions) in the lower Yellow River and the lower Wei River. It reviews the current research status; derives general formulas for sediment discharge ratio and general solutions for scour-deposition thresholds based on unsaturated sediment transport theory; establishes quantitative relationships between sediment discharge ratios and scour-deposition thresholds for various reaches of the lower Yellow River and the lower Wei River, as well as for high-sediment-concentration flows, based on measured data; proposes a formula for calculating the maximum scour depth during floods according to unsteady flow theory; explores the scour-deposition characteristics of coarse sediment in the lower Yellow River, the scour-deposition adjustment relationship between the upper and lower reaches of the lower Yellow River, the adjustment mode of suspended sediment composition, and the upstream sand waves in high-sediment-concentration flows, among other topics, and analyzes and discusses related issues. Some content of this book is a result of the major project "Research on Key Technologies for Maintaining the Basic Functions of Flood Control and Sediment Transport in the Lower Yellow River" under the National Science and Technology Support Program during the 10th Five-Year Plan. This book is suitable for professionals in the fields of sediment and river dynamics, water conservancy, hydrology, geography, flood control and disaster reduction, bridge and culvert engineering, and pipeline river-crossing projects, as well as university teachers, students, and researchers.