摘要
粉砂淤泥质海岸开挖的开敞航道,普遍存在淤积问题,而且在风暴浪作用过后,经常出现泥沙大量骤淤现象。根据已有的研究成果,指出航道淤积除存在悬移质淤积、推移质淤积、层移质淤积外,还有泥沙流滑淤积、航道侧面土体滑坡淤积2种方式,并概念性地分析了粉砂淤泥质海岸航道淤积。在常浪状况下,主要为“悬移质+推移质+层移质”的淤积组合模式;在风暴浪状况下,主要为“悬移质+推移质+层移质+泥沙流滑+航道侧面土体滑坡”的淤积组合模式。
A common problem with the open channel in silty mud coast area is siltation, and the drastic sand siltation under the actions of storm wave occurred frequently, in this paper, it is pointed out that there are other two siltation modes, silt flowslide siltation and channel bank landslide siltation besides suspended load siltation, bed load siltation and layer load siltation. The main siltation model for open channel under normal wave conditions is suspended load ＋ bed load ＋ layer load siltation model, and that under storm wave conditions is suspended load＋bed load＋ layer load＋silt flowslide＋bank landslide siltation model.
出处
《海岸工程》
2005年第4期11-16,共6页
Coastal Engineering
基金
山东省科技攻关项目--水利插板桩设计计算方法与实验研究(2004GG3204003)
