长江口南北槽鱼嘴护底结构物水毁原因分析  

Flood damage of fish mouth bottom structure in south and north passage diffluence pass in the Yangtze estuary

作　　者：程晨 曹杰 

机构地区：[1]上海河口海岸科学研究中心,上海201201

出　　处：《水运工程》2015年第10期96-100,共5页Port & Waterway Engineering

摘　　要：通过走航测量及坐底观测等方法,对长江口南北槽分流鱼嘴工程护底结构物水毁区域进行测量。所得数据资料分析结果表明,引起导堤南侧水毁的主要原因在于近底垂向紊动水流造成排体间隙淘刷和护肩块石失稳,修复工程应兼顾护底结构物的稳定性及护底作用。By ship board measurement and the bottom tripod survey system, we investigate the flood damage area of fish mouth bottom structure in the south and north passage diffluence pass in the Yangtze estuary. The data analysis shows that the main reason for the south side flood damage is the scouring under the flexible mattress and the instability of concrete stone caused by the bottom vertical turbulent flow. The repair work should guarantee both the stability and the bottom protection effect of the bottom structure.

关 键 词：长江口 护底结构物水毁 水文观测 紊动水流 

分 类 号：U617.8[交通运输工程—船舶及航道工程]