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依据在现代黄河三角洲东北海区(埕北地区)所取2个钻孔的详细资料,将本区地层自上而下分为全新世地层、晚更新世地层和底部的中更新世地层。上部全新世地层厚约15米,按沉积物的物理力学性质又可分为两个亚层:A亚层,0～9米是现代黄河三角洲沉积,含有许多含水量高强度低的软弱夹层;B亚层,9～15米,是全新世高海面时期的浅海沉积,其承载力较高。 15～65米为晚更新世地层,上半部均质性差,有软弱夹层。下半部较稳定,承载力超过20吨/米~2。晚中更新世地层(65米以下),经过长时期的固结作用,含水量较低,密度较高,承载力超过30吨/米~2。
Based on the detailed data of two boreholes taken in the northeastern sea area of the Yellow River Delta (Taibei area), the strata of this area are divided into Holocene strata, Late Pleistocene strata and bottom Pleistocene strata. The upper Holocene is about 15 meters thick. According to the physical and mechanical properties of the sediments, it can be divided into two sub-layers: sublayer A, 0 ~ 9 meters, which is a sediment of the modern Yellow River Delta and contains many weak intercalations with high water content and low intensity. B sublayer, 9 ~ 15 meters, is the shallow sea sediments during the Holocene high sea level, its bearing capacity is higher. 15 ~ 65 meters Late Pleistocene strata, the first half of poor homogeneity, weak intercalations. The lower part of the more stable, carrying capacity of more than 20 tons / m ~ 2. Late Pleistocene strata (less than 65 meters), after a long period of consolidation, lower water content, higher density, bearing capacity of more than 30 tons / m ~ 2.