雅口枢纽上游隔流堤布置技术研究  

Study on layout of upstream partition dyke in Yakou project

作　　者：闫涛[1] 周粮江 普晓刚[1] 李君涛[1] 

机构地区：[1]交通运输部天津水运工程科学研究所港口水工建筑技术国家工程实验室工程泥沙交通行业重点实验室,天津300456 [2]河海大学港口海岸与近海工程学院,南京210098

出　　处：《水道港口》2016年第3期275-278,共4页Journal of Waterway and Harbor

摘　　要：合理确定隔流堤布置参数可以有效改善枢纽敞泄时的通航水流条件。以雅口航运枢纽为例,采用模型试验研究了船闸上游口门区水流条件与隔流堤堤身长度的关系,和堤头线型对其附近连接段通航水流条件的影响。结果表明:随着隔流堤长度的增加口门区最大横向流速先减小后增大,存在最优隔流堤长度以改善口门区通航水流条件;堤头采用等弦长但弧长不同的曲线线型时,堤头附近连接段通航水流条件随曲线弧长的减小逐渐转差,但相应的口门区通航水流条件逐渐转好。Appropriate dyke length is the promise of good navigation condition in upstream ship lock entrance. Taking Yakou project for example, the relationship between navigation flow condition and length of dyke was investi-gated, and then the effect on the flow condition caused by different dyke forms was revealed. Results show that the maximum transverse velocity at the entrance area decreases with the increase of dyke length firstly, and then in-creases. There is an optimal length of the separation dyke which can provide favorable flow condition. According to the dyke heads with the same chord length but different arc length, navigation flow conditions around the dyke head become worse when arc length decreases,but the flow conditions in ship lock entrance area gradually become more advantageous.

关 键 词：通航枢纽 主槽过渡 隔流堤长 堤头弯段 水流条件 

分 类 号：TV139.2[水利工程—水力学及河流动力学] U656.2[交通运输工程—港口、海岸及近海工程]