大连港太平湾港区波浪物理模型研究

通过波浪整体物理模型试验,对大连港太平湾港区起步工程港内波况和码头上水情况进行测定,并根据试验结果对平面布置进行优化。设计方案在W向波浪作用下,迎浪侧波浪直接穿过进港航道边坡进入港内,波浪在直立码头间发生来回反射,港内波高较大。设计方案在WSW向波浪作用下,迎浪侧航道边坡对波浪的折射现象较W向明显,港内波浪的多次反射现象与W向时基本一致。优化方案一将迎浪侧进港航道边坡开挖,波浪折射到港外,港内波高减小。优化方案二北侧防波堤延长至874 m,对港内的掩护优于优化方案一。优化方案三在优化方案一的基础上,将东侧码头外端1 km码头型式改为高桩码头,在高水位时桩式结构的反射效果未得到充分发挥,低水位时反射效果略明显。

Research on wave physical model for Taiping bay of Dalian Port

The wave conditions in the harbor area and the overtopping of the wharf for preliminary project of Taiping bay were determined through 3D wave physical model test, and the optimal layout was suggested based on the test results. The results show that, in the design scheme under the action of W wave direction, wave gets through the approach channel slope into inner harbor, and it reflects back and forth on front of the wharf, so the wave height is bigger. In the design scheme under the action of WSW wave direction, the refraction is more obvious than W di- rection, but the multiple reflection of waves in the inner harbor is basically the same as W direction. And wave height decreases because of the excavation of channel slope enhance the refraction of waves in optimization scheme one. The optimization case two, in which the north side of the breakwater is extended to 874 m, is better than the op- timization case one. While in the optimization case three based on optimization case one, the wharf type is changed into high-pile wharf at the outer end of the east wharf for 1 km. The wave dissipation effect is slightly obvious under low water, but the wave transmission effect has not been fully developed in high water level.