“赶鱼”——三峡三期上游围堰爆破拆除中的生态保护

Fish Protective——Measures of the Third Roller Compaction Concrete Cofferdam Blasting Removing in the Three Gorge Project

三峡大坝坝前水域是鱼类分布比较密集的场所。三期RCC围堰爆破时所产生的水下冲击波,可能会对邻近水域的鱼类产生不同程度的伤害。经研究在爆破前采取声纳探测结合高压电脉冲驱赶的方案,可有效地驱赶鱼群离开爆破危险水域。2006年6月6日围堰爆破结束后,监测结果表明没有鱼类因围堰爆破而受到损伤或死亡的情况,标志着此次鱼类保护工作取得了圆满成功。

The water area before the dam is the place of densely fish. During the third roller compaction concrete cofferdam of the Three Gorge Project （the 3rd RCC） removing, the blasting shock wave would hurt the fish nearly. A series of researches and tests were put into effect to ensure the security of the fish. Radiocoustic position finding and high-voltage pulse action driving away as a des- ignate plan was put into effect. The plan was carried out smoothly in June 6, 2006. The monitor data show that no fish were hurt. The facts show that it was a success fish protective measure.