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在海岸工程中,由于地形剧烈的冲淤变化导致工程附近水情相应改变,对工程实施常造成较为不利的影响。本文以二维平面水流数值模拟为手段,模拟了四通港、五通港促淤坝建成后,无名沙夹泓在2003年和2006年不同地形情况下内外侧水位、流场情况。通过模拟分析认为工程附近剧烈的地形变化是造成该工程促淤坝内外水位差急剧上升的原因,从而导致堤坝在施工过程中产生局部塌陷,同时通过数模分析提出了既经济又合理的处理方案,为类似工程提供了科学的参考经验。
In the coastal project, due to the drastic erosion and deposition of the terrain, the water conditions near the project have changed correspondingly, which often causes more adverse impacts on the project implementation. In this paper, two-dimensional numerical simulation of plane flow as a means to simulate the four-port Hong Kong, Wutong Hongkou dam built, the unknown sand folder Hong in 2003 and 2006 under different topography of the situation inside and outside the water level and flow field. Through simulation analysis, it is considered that the drastic topographic change near the project is the cause of the sharp rise of the water level difference between the inside and outside of the project, resulting in the partial collapse of the dam during the construction process. At the same time, the economical and reasonable treatment plan , For similar projects provide a scientific reference experience.