The suspended sediment of natural streams is usually made up of grains with a broad spectrum of sizes and fall velocities. 天然河流的悬沙，通常系由各种大小尺寸和沉速的粒子组成。
The silting mechanism downstream of sluices and limits of the 2-D suspended sediment model to simulate the silting downstream of sluices in a tidal reach are analyzed. 分析了感潮河段闸下淤积机理及用平面二维悬沙数学模型模拟闸下淤积存在的缺陷。
