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分析了 1 998年长江中下游大洪水特点、崩岸与治理情况 ,从中肯定了崩岸治理的成效 ,提出了存在的问题。提出了崩岸治理分阶段的区分标准 ,对照长江中下游崩岸治理过程 ,大体经历了 60年代以前的自然演变阶段 ,60年代以来的初步治理阶段 ,进展是不一致的 ,其中I级堤防已步入加固改造阶段 ,个别堤段已开始转入岁修维护阶段。认为崩岸治理是控制与稳定有利河势的基本措施 ,是经济可持续发展的基础 ,据此 ,探讨了治崩的 3大策略与举措 ,可供决策参考
This paper analyzes the characteristics of large floods, bank collapse and treatment in the middle and lower reaches of the Yangtze River in 1998, confirms the effectiveness of the bank collapse management and puts forward the existing problems. The classification criteria for the bank collapse management are put forward. The process of bank collapse management in the middle and lower reaches of the Yangtze River has been compared with the natural evolution stage before the 1960s and the initial stage of governance since the 1960s. Into the reinforcement transformation stage, individual embankments have begun to enter the maintenance phase repair. It is concluded that the management of bank collapse is the basic measure to control and stabilize the favorable river regime and the basis of sustainable economic development. Therefore, three strategies and measures for managing collapse are discussed, which can be used for reference of decision-making