基于改善水体交换能力的环抱式长港池布置优化

针对单口门环抱式长港池水体交换不畅的问题,以大连港太平湾港区为例,提出开辟港池底部与外海水体交换通道的布置方案。利用平面二维水动力及水体交换模型,研究港池底部通道不同开口宽度和底高程对水体交换能力的影响。结果表明:港池底部通道开口后,港池水体交换能力可以提高30%以上,而通道底高程影响较小。研究成果对于环抱式长港池规划方案的制定具有借鉴意义。

Layout optimization of encircled long basin based on improving water exchangeability

Considering the problem of water exchange in the encircled long basin with one entrance,taking Taiping Bay harbor in Dalian as an example,the layout of opening up a water exchange channel between the bottom of the basin and the sea was put forward.Based on a two-dimensional hydrodynamic and water exchange model,the effects of different opening widths and bottom elevations on water exchange were studied.The results show that the water exchangeability of the basin could be improved by more than 30%after the channel opening at the bottom of the basin,but channel bottom elevations have little influence.The research results are of reference significance for the planning of the encircled long basin.