贺江下游航道优化开发等级研究  

Optimization of waterway grade of Hejiang river

作　　者：吴腾[1] 徐金环[1] 陶桂兰[1] 吴志龙[1] 

机构地区：[1]河海大学海岸灾害及防护教育部重点实验室,江苏南京210098

出　　处：《水运工程》2014年第4期106-110,共5页Port & Waterway Engineering

基　　金：广东省交通厅科技项目(2010-02-029);国家自然科学基金项目(51309084)

摘　　要：贺江下游航道兼有山区河流和渠化河流的特点,枯水季节局部航道出浅,长期以来等级低下,水运发展缓慢,影响了航运效益的发挥。建立了一维数学模型,研究枢纽调度运行条件下贺江下游航道的水位衔接问题、碍航浅滩的长度;并考虑山区河流枢纽渠化河段以及河口入汇自然河段的航道整治宽度、航道疏浚条件下水位的降落程度,分析了贺江航道适宜提高航道等级的可行性与适用条件。最后将碍航浅滩的长度、航道整治宽度和水位的降落程度作为航道优化等级确定的参数,综合确定了贺江下游航道的优化开发等级为Ⅳ级。Waterway grade of Hejiang river is low for a long time,which restricts the navigation capacity and navigation benefits. This paper establishes a one-dimensional mathematical model to study the navigable water level and the length of shoal under the condition of hydropower stationss operating,takes the channel regulation width and water level decrease ratio into account,and analyzes the feasibility and application conditions of the improvement of Hejiang river waterways level. In the end,the shoal length,channel regulation width and water level decrease ratio are chosen as factors to be determined for the optimization of waterway grade. The result indicates that the suitable waterway grade of Hejiang river is the fourth.

关 键 词：航道等级 航道整治 水位 贺江 

分 类 号：U617.6[交通运输工程—船舶及航道工程]