长江中游护滩带破坏原因及对策

Destruction reasons and countermeasures of bar protection zone in the middle reach of the Yangtz River

针对近年来在长江中下游沙质河床的整治中大量采用的护滩带出现破坏的情况,结合工程建筑物的水沙条件、地质条件等因素,通过分析其破坏部位和破坏形式,找出其破坏的原因,提出了多种解决措施,并在其他工程中进行了试验性的运用,通过运用后的效果对比,提出了较为成熟的护滩带结构形式。

In recent years, lots of beach protection belts used for river improvement in the sand beds in the middle and lower Yangtze river are destroyed. Based on the analysis of the destruction region and type, and considering the water-sediment condition and geologic condition of the construction, several solutions are proposed. The results of some tentative application in other projects verify the effectiveness of these solutions. Thus a relatively maturely type of beach protection belts ias proposed.