港珠澳大桥岛隧工程龙鼓西水道临时航路航标设计

海上工程跨越航道,施工时需要占用航道。为了尽量减少施工对船舶通航的影响,需要设置临时航道,但是目前尚无针对临时航道的设计规范。针对临时航道的设计船型、宽度、选线、底高程、助航标志、施工区警示标志等问题进行探讨。港珠澳大桥岛隧工程龙鼓西水道临时航路经历4次转换,通过专题论证和专家研讨确定不同施工阶段的临时水道关键技术参数和航标布置方案,在实际应用中证明是可行的。表明不能完全按正常航道的通航要求来设计临时航道,需要与施工计划、船舶调度、现场管理相结合。

Design of aids to navigation for temporary Longguxi channel of island and tunnel project,Hongkong-Zhuhai-Macau Bridge

The construction of the seawater projects across channel will occupy the navigation channel,thus the temporary channel shall be set up to reduce the influence on vessel navigation by project construction.Up to present,there is not a design regulation for the temporary channel.The design vessel,width,center line,depth and aids to navigation of the temporary channel are discusses.The temporary Longguxi channel of island and tunnel,Hong Kong-Zhuhai-Macau Bridge transforms 4 times during the whole construction.The design key technical data of the temporary channel and plan of aids to navigation are determined by special demonstration and expert discussion,and the feasibility of which has been proved feasible in the practical operation.It is shown that we should not design the temporary channel based completely on the requirement to the normal channel,but should integrate it with the construction plan,vessel dispatch and site supervision.