唐山港丰南10万吨级航道工程设计

Design of Fengnan 100,000 DWT channel of Tangshan Port

唐山港丰南10万吨级航道工程是在2万吨级航道基础上进行扩建。本航道所在水域,水流条件复杂,口门航行条件较差,航道设计难度大。通过对乘潮历时的分析及乘潮水位的选取,确定航道主尺度,提出合理的航道布置方案,结合船模试验进一步优化航道设计方案,并根据潮流数模试验,确定船舶通航窗口期。经论证,推荐平面方案1的布置形式,10万吨级船舶乘潮通过口门时,为高平潮时刻,口门流速较小,水流流态平稳,是最佳的通航时机,有利于船舶通航安全。大型船舶通过口门受横流影响较大或口门流态复杂时,乘潮航道应综合考虑高潮位与大横流的同步关系。

The Fengnan 100,000 DWT channel of Tangshan Port is based on the expansion of a 20,000 DWT channel.The channel flow condition is complicated,and navigation condition is bad,so the design of the channel is very difficult.Based on the analysis of the tide duration and selection of tide level,we determine the main scale of the navigation channel and propose a reasonable channel layout scheme,which is further optimized in combination with the real ship test.Based on the numerical simulation test of current,we determine the window period of navigation.After the demonstration,it is recommended that the layout type of plan No.1 should be adopted.When a 100,000 DWT ship rides through the entrance by tide,it is the time of still tide,the flow speed is small,and the flow is stable,which is the best navigation opportunity and is conducive to the safe navigation of ships.When a large ship is influenced by the cross flow or the flow state of the entrance is complex through the port,the synchronous relationship between the high tide level and the large cross flow should be taken into consideration.