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1 闸下入海航道和河海联运现状小洋口闸下入海航道至黄沙洋主槽-10m 等深线全长约16.6km,其中近闸段航道长3.3km,底宽80.0m,面宽130.0m;外航道底宽约500～700m,并逐渐向外海扩大,略呈喇叭型.前者河底高程一般为-1.0～-2.0m;后者河底高程一般为-2.0～-3.0m,平均低潮位时航道水深约2.0～4.0m(废黄河口基面).航道年回淤深度约1.5m,泥沙主要来自航道两侧滩地,部分泥沙来自外海由潮流带
1 gate into the seaway and the sea and sea transport under the Xiao Yangkou gate into the seaway to the main channel of the Yellow Sea sand -10m isobath length of about 16.6km, of which near the gate channel length 3.3km, bottom width of 80.0m, 130.0 wide m; the bottom width of the outer channel is about 500 ~ 700m, and gradually expands to the outer sea, slightly horn-shaped. The former river bottom elevation is generally -1.0 ~ -2.0m; the latter river bottom elevation is generally -2.0 ~ -3.0m, the average The water depth at the low tide level is about 2.0 ~ 4.0m (the base of waste Yellow River Estuary). The depth of silting back silting is about 1.5m. Sediment mainly comes from the beach on both sides of the waterway,