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通过磨刀门咸潮整体物理模型对活动式潜坝的抑咸效果进行试验。根据磨刀门咸潮运动规律和地形条件,选择在珠海大桥和联石湾两坝址设置活动潜坝进行试验。试验结果表明:抑咸活动潜坝不仅对从底部上溯的盐水楔具有部分阻挡作用,同时还能增大盐淡水掺混,从而起到明显的抑咸效果。
The saltwater effect of movable submarine dam is tested by the integral physical model of saltwater trap. According to the movement and the terrain condition of the Saber Gate salty sea, we choose to test the potential submarine dam at the two dam sites of Zhuhai Bridge and Lianshwan Bay. The experimental results show that the submarine dam is not only partially obstructing the upstream wedge of salt from the bottom, but also can increase salt and fresh water admixture, which can remarkably suppress the salinity.