长江中下游航道整治软体排护滩带结构优化设计

对目前在长江中下游航道整治护滩（底）工程中广泛采用的系结混凝土块压载软体排护滩带的运用情况进行了实地调查与实测资料分析，并通过模型试验研究，对其易出现破坏的地方和引起破坏的主要原因，以及防止破坏或出现局部破坏后的修复工程措施进行系统研究；从保持所护滩体功能基本不变的观点出发，提出了确定护滩带间距和宽度的研究途径；同时提出了护滩工程结构设计优化措施。

Structural optimization of flexible mattress beach protection belts used in waterway regulation in the middle and lower reach of the Yangtze River

This paper presents the on-the-spot investigation and prototype observation data analysis for a new kind of flexible mattress with concrete blocks ballast which is widely used in the Yangtze River. Through the model test, the paper also analyzes the most easily damaged parts and the main failure reasons of the buildings and measures to prevent damage and relevant restoration measures. Taking into account the principle that the body of the central bar should maintain the stability of the shoals and channels, this paper proposes the research approach to determine the width of beach protection belts and the space between them. At the same time, it proposes the measures to optimize the beach protection engineering structures.