| 珠江口外海沉积物(原状样)微结构特征及其物理性质 |
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| 引用本文： | 卢博,李传荣.珠江口外海沉积物(原状样)微结构特征及其物理性质[J].海洋学报,2002,24(2):94-100. |
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| 作者姓名： | 卢博 李传荣 |
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| 作者单位： | 1.中国科学院南海海洋研究所边缘海地质和古环境开放实验室, 广州 510301 |
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| 基金项目： | 国家自然科学基金资助项目（4967628），中国科学院广州分院、广东省科学院分析测试基金资助项目. |
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| 摘 要： | 以第四纪地质土质学的显微结构理论和技术方法,研究珠江口外海沉积物工程地质评价中存在的问题.利用电子探针等微区分析方法深入分析软土结构、微结构的组构和层理以及分类特征,结合原状样物理力学性质参数,研究颗粒接触、堆垒、孔隙等现象与物理性质之间的关系.分析研究表明,珠江口外海沉积物存在着6个微结构类型,其中混合接触结构的底质类具有较高的抗压强度.
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| 关 键 词： | 珠江口 第四纪沉积物 微结构 土工学 |
| 文章编号： | 0253-4193(2002)02-0094-07 |
| 收稿时间： | 2000/5/16 0:00:00 |
| 修稿时间： | 9/4/2000 12:00:00 AM |
Micro-structure features of sediment and its physical characteristics in off-sea of the Zhujiang River mouth |
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| LU Bo and LI Chuan-rong.Micro-structure features of sediment and its physical characteristics in off-sea of the Zhujiang River mouth[J].Acta Oceanologica Sinica (in Chinese),2002,24(2):94-100. |
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| Authors: | LU Bo and LI Chuan-rong |
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| Institution: | 1.Opening laboratory of Margin Sea Geology and Ancient Environment of South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China2.Marine Instrument Centre of South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China |
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| Abstract: | A micro-structural theory and a technical method of Quaternary geology are used to study engineering geological estimating problems of sediments in off-sea of the Zhujiang River mouth. Soft soil structures, micro-structure and classification characteristics are analysed by using method of electron microscope. On the basis of analysing physical - mechanical characteristic parameters, the relation among grain contact, grain accumultion and porosity with physical - mechanical characteristics of sediments are studied. The study result shows that there are 6 micro-structural types in sediments of off-sea of the Zhujiang River mouth, and among these, the mixed contact structural sediment has higher compressive strength than others. |
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| Keywords: | Zhujiang River mouth Quaternary geological sediments micro-structure soil mechanics |
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