粉沙淤泥质海岸的航道淤积  

Silt siltation in approach channel of the coast with silty mud sediment

作　　者：刘家驹[1] 

机构地区：[1]南京水利科学研究院,江苏南京210029

出　　处：《水利水运工程学报》2004年第1期6-11,共6页Hydro-Science and Engineering

摘　　要：简要概述了引起近岸浅水海域航道泥沙淤积的3个因素.回顾了淤泥质海岸航道淤积厚度的计算方法,其中,特别对破波与非破波产生的含沙量作出的比较表明,它们之间的差别非常之大,但只要考虑了破波和正常波的不同水动力特性、粉沙淤泥质泥沙与淤泥质泥沙之间的不同运动特性,则淤泥质海岸航道的淤积计算方法,就可以用于粉沙淤泥质海岸.结合我国渤海湾粉沙淤泥质海岸的某外航道进行了骤淤计算,其结果与实际情况一致.Three factors affecting the siltation thickness in an approach channel are briefly described and the computation methods for the siltation thickness in the channel of mud coast are reviewed. The results show that the difference of the concentrations under the action of breaking waves and normal waves is very big. But the computation method of the siltation thickness in approach channels derived from the mud coast can be used in the silty mud coast by considering the different hydrodynamic characters of breaking waves and normal waves and the movement properties of mud sediment and silty mud sediment. As an example, the sudden siltation thickness in an approach channel, located on the silty mud coast of Bohai Bay, China, is computed. The computation results agree with the actual siltation.

关 键 词：淤泥质泥沙 粉沙质泥沙 航道淤积 淤积厚度 水动力 

分 类 号：TV142.1[水利工程—水力学及河流动力学]