埕岛油田海域沉积物沉积分类向工程分类的转化研究

发布时间：2018-05-02 22:27

本文选题：埕岛油田 + 工程分类　；参考：《海洋科学进展》2016年01期

【摘要】：通过对埕岛海域长期以来的海洋沉积物工程分类样品进行分析,发现并总结了黏粒质量分数与塑性指数之间存在的关系。在一定程度下,只利用沉积物的粒级组分就可进行工程分类。研究发现:粉土与粉质黏土的黏粒质量分数界限为20%,粉质黏土与黏土的黏粒质量分数界限35%。使用该分类界限,在研究区只使用粒度对沉积物的工程分类命名准确率可达90%以上,做出沉积物分布图准确率在80%以上。
[Abstract]:Based on the analysis of engineering classification samples of marine sediments in Chengdao sea area for a long time, the relationship between clay mass fraction and plastic index is found and summarized. To a certain extent, engineering classification can be carried out by using only the grain-size components of sediments. It is found that the clay mass fraction of silt and silty clay is 20 and that of silty clay is 35. By using this classification limit, the accuracy of engineering classification of sediment can be more than 90% by using granularity in the study area, and the accuracy of sediment distribution map can be more than 80%.
【作者单位】：国家海洋局第一海洋研究所;
【基金】：海洋公益性行业科研专项——近海海底地质灾害预测评价及防控关键技术研究(201005005)
【分类号】：P75;P736.21

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