潮位潮流关系及靠离泊窗口对港池航道乘潮历时的影响

Influence of tidal level and current relationship and berthing and unberthing time on ridable tide duration of harbor basin and channel

针对大型开敞式港池及航道水域设计水深的取值问题,以宁波某工程为例,论述了基于潮流潮位关系及靠离泊窗口影响下的乘潮历时取值过程,采用规范公式计算设计水深,并以航行实践规定的安全富余水深辅以分析合理性。提出大型开敞式港池及航道水域可根据当地海区的潮流潮位关系、靠离泊窗口、通航要求及通航组织方案确定乘潮历时,研究方法可为类似港口设计提供思路。

To calculate the designed depth of large open harbor basin and channel waters,this paper takes a project in Ningbo as an example and analyzes the ridable tide duration acquired according to the influence of tidal level and current relationship and berthing and unberthing time.The paper calculates the designed depth using the specification formula and applies the safe surplus water depth stipulated by navigation practice to supplement the analysis rationality.The paper suggests that the ridable tide duration of large open harbor basin and channel waters can be determined according to the tidal level and current relationship,berthing and unberthing time,navigation requirements,and navigation organization scheme of the local marine area.The research method can provide ideas for similar port designs.