钦州湾新港区布置对航道水流影响物理模型试验研究

钦州港新建港区位于10万t级东航道和30万t级油码头航道水域,该规划方案对其航道水流及横流均有影响。借助潮流物理模型试验,模拟整个钦州湾海域潮流情况,对规划方案航道水流及横流进行了分析研究。模型试验研究表明:3个方案中30万t级油码头航道流速变化幅度在0.10 m/s以内,西岸线东航道处流速增加幅度均在0.20 m/s以内,方案1增加范围幅度最大。 新港区水流主流在10万t级东航道,方案布置对西侧10万t级东航道水流及横流影响大于方案口门之间30万t级油码头航道,岸线圆滑处理后的方案3东航道横流减少明显。方案布置应尽量利用东航道横流较小的环抱式方案。

Physical Model Test on the Layout of New Port Area on Cross Flow in Qinzhou Bay

The New Port of Qinzhou Bay is located in the water area of 100 000 tons east channel and 300 000 tons oil wharf which will be affected by the New Port plan in terms of channel flow and cross flow. The tidal current in the whole Qinzhou Bay was simulated via physical model test in an attempt to analyze the channel flow and cross flow in the new port plan. Test results revealed that among the three plans, velocity change in plan 1^# is the largest. Flow velocity in the channel of 300 000 tons oil wharf varies within 0.10 m/s; flow velocity in the east channel of west shoreline increases within 0.20 m/s. Since the main currents in the New Port concentrate in the 100 000 tons east channel, the influence on the flow and cross flow in 100 000 tons east channel will be larger than those in the 300 000 tons oil wharf channel. In plan 3^# in which the shoreline is smoothed, cross flow in the east channel reduced apparently. Therefore, the encircling plan is recommended.