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随着我国海洋事业的发展,沿海地区和近海陆架的岩土工程地质评价问题越来越重要。我们用扫描电镜(SEM)、X射线能谱(EDAX)、X射线衍射仪(XDA)和激光光波仪分析了我国沿海及近海陆架海相沉积物的物质成分和微结构特征。研究分析发现,海相沉积物的微结构十分复杂而多交,它不仅与沉积环境有关,并且与物质来源密切相关。根据海相沉积物的微结构特征分析,可以把我国近海海相沉积物的微结构进行分类,且不同的微结构类型具有不同的工程性质。
With the development of China’s marine undertakings, the geotechnical geology assessment issues in coastal areas and offshore shelves are becoming more and more important. We analyzed the composition and microstructure of marine sediments in China’s coastal and offshore shelves by scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDAX), X-ray diffraction (XRD) The study found that the microstructure of marine sediments is very complex and pay more, which is not only related to sedimentary environment, but also closely related to the source of matter. According to the analysis of microstructure characteristics of marine sediments, the microstructures of marine sediments in offshore China can be classified, and different types of microstructures have different engineering properties.