Abstract

In this paper, the consolidation settlement and settlement rate were studied based on the drilling data of the Yellow River subaqueous delta. The results show that surface sediments of ZK-2 are significantly coarsen than ZK-1, and correspondingly with varying physical and mechanical properties in different cores. Based on the one-dimensional consolidation theory, 50m thickness of layer could produce a total of 1.70m settlement in ZK-1, and 60m could produce 2.34m settlement in ZK-2. The consolidation settlement of unit depth is at 0.1~9cm/m. The consolidation degree needs about 15~20 years to reach 90% and the average sedimentation rate is at 7-9cm/a.

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