【摘要】 <正> 推移质与海水中悬移质数量之多寡及其随潮流的运动规律,对于研究海岸变迁及港湾冲淤是非常重要的因素。正在兴建的石臼大港位于山东省日照县石臼所,将是我国第一个10万吨级以上的大港和重要的煤炭出口基地。研究港区附近悬移质与推移质运动规律,是保证航道畅通的重要问题。港区管理部门必须了解航道中每年的可能淤积量,以便决定安全航行时间尺度、挖泥船的吨位和设备。更为重要的是,大风能否使航道骤淤。更多还原

【Abstract】 Shijiu harbour is to be constructed at southern Shandong as an important shipping center with a docking capacity of 100 thousand tonnages of a single vessel. Tides and tidal currents were frequently observed at three different layers from December 1979 to April 1980. Bed-load discharge was sampled and calculated for different weather conditions. Some of the results are as follows: 1. The amount of bed loal discharge is 0.1359 g/cm~2 day during the spring tide 0.09 g/cm~2 day during the neap tide, 0.488g/cm~2 day during storm weather, which is four times as high as that during average tides. 2. The maximum, amount of the sediments that settle to the waterway is less than 46.7768 g/cm~2 per year, therefore the waterway wilt not be blocked by the transported sand and clay even after a storm weather.更多还原