深槽护底带端部边缘防护结构优化

Optimization of edge-protecting structures at the end of the bottom protection zone in deep channel

调研已实施深槽护底工程的稳定性,在分析破坏原因的基础上提出了深槽护底端部边缘防护优化思路。以长江中游江口水道七星台深槽护底带为例对深槽护底边缘防护结构开展水槽试验研究,最终提出了深槽护底带边缘设置抛石+柔性材料+透水框架组合防护措施,该措施防护效果较优。

The paper investigated the stability of the implemented deep-channel bottom protection project, and put forward the idea of optimizing the edge-protecting structures at the terminal end of the bottom protection zone work in deep channel based on the analysis on destruction causes. Further, taking Qixingtai deep-channel bottom protection zone at the Jiangkou waterway in the mid reach of the Yangtze River as an example, it carried out flume experiments and studies on the edge-protecting structure at the end of bottom protection zone in deep channel and finally raised combined measures of setting rock riprap plus flexible materials and permeable frames at the edge of bottom protection zone in deep channel.