港珠澳大桥对伶仃洋水沙环境的影响

摘要

Based on the measured data of the hydraulics,sediments and water depth in Lingding Sea,the physical model with the boundary of Wanshan islands in the south,Humen in the north,Jishui mouth in the east and Zhuhai-Macao in the west was founded to study the influence of the Hong Kong-Zhuhai-Macao Bridge (HZMB) project construction on the flow field,tidal level and water depth at the sea area of the harbors in Lingding Sea,Lingding Channel and Tonggu Channel.The results show that the construction of HZMB has the influence on tidal current and tidal level only in the scope of 4 km upstream and downstream of HZMB line,and the Lingding Channel and Tonggu Channel are almost unaffected.%利用珠江口伶仃洋海域实测水文、泥沙及水深测量等现场实测资料分析,建立了南起万山群岛、北至虎门、东起汲水门、西至珠海—澳门的港珠澳大桥整体物理模型,研究工程实施对伶仃洋诸港口、伶仃航道、铜鼓航道及附近海域流场、潮位和水深变化的影响.结果表明:港珠澳大桥实施对潮流、潮位的影响仅在桥轴线上下游各4 km的范围内,对伶仃航道、铜鼓航道通航基本没有影响.