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三八滩是位于长江中游荆江沙市河段内的一个心滩。我们从1981年11月开始上滩踏勘采样。滩体长约3.5公里、宽1公里左右,面积3.5平方公里。滩头平坦,倾向上游,坡角小于20′、滩尾倾向下游,坡角2°左右。在滩面上大致按均匀网格采样33个,剖面上收集水文浅七孔砂样39个,取样间隔半米,
Sand beach is located in the middle reaches of the Yangtze River in Jingjiang Shashi a heart of the beach. We started in November 1981 on the beach reconnaissance sample. Beach about 3.5 kilometers long, about 1 km wide, an area of 3.5 square kilometers. Flat beach, tend to upstream, slope angle is less than 20 ’, beach tail downstream, slope angle of 2 °. 33 samples were collected on the beach surface according to a uniform grid pattern, and 39 sand samples of shallow seven holes were collected in the section. The sampling interval was half a meter,