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Adaptability Analysis of Typical Bank Protection Structures in the Middle Reaches of the Yangtze River
YAN Yang-tian, ZHU Yong-hui, DENG Cai-yun, GUO Chao
Journal of Changjiang River Scientific Research Institute ›› 0
PDF(1134 KB)
PDF(1134 KB)
Adaptability Analysis of Typical Bank Protection Structures in the Middle Reaches of the Yangtze River
The river channel in the middle reaches of the Yangtze River experiences drastic changes in river regime and frequent bank collapse disasters. A systematic analysis of the failure mechanisms and adaptability characteristics of typical revetment structures provides valuable insights for the stable control of river regime and the prevention of bank collapse disasters in critical sections. By systematically reviewing the practice of riverbank revetment projects in the middle reaches of the Yangtze River, the following main conclusions are drawn: Riprap revetment remains the current main protection type, various new revetment technologies are gradually being promoted and applied, and the design concept oriented towards ecological functions is increasingly prominent. The mechanical properties, protection mechanisms, failure modes, and improvement strategies of revetment projects are comprehensively analyzed. In combination with the geological conditions and water-sediment characteristics of typical bank sections, an evaluation of revetment adaptability is carried out. The stability of revetments is comprehensively influenced by hydrodynamic conditions, riverbed boundary characteristics, structural design parameters, construction technology levels, and operation and maintenance management levels. An evaluation system is constructed from three dimensions: hydraulic adaptability, ecological adaptability, and economic adaptability. The demonstration shows that ecological concrete revetments have significant advantages in comprehensive performance. The research results can provide theoretical support for the optimization of revetment projects in the middle reaches of the Yangtze River. In the future, revetment technologies should develop towards being environmentally friendly and resource-energy-saving.
bank protection engineering / adaptability of bank protection / failure mechanisms / ecological bank protection / the middle reaches of the Yangtze River
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