摘要
根据南海中沙天然气水合物远景区沉积物样品的分析资料,从物理力学特征各方面对本区海底沉积物进行了综合工程地质特征研究。结果表明,本区海底沉积物类型全部为淤泥,工程地质性质相近,以高含水率、高孔隙比、低密度及高塑性为主要特征,抗剪强度很小,压缩系数均大于0.5。土体沉积环境为水动力强度较弱的深海半深海环境。
In this paper, the analytical data of sediment samples from the Zhongsha natural gas hydrate prospective area of the South China Sea are used to make a study on comprehensive geotechnical characteristics of bottom sediments from this area. It is shown from the study results that the bottom sediments from this area are all mud with similar geotechnical properties, the sediments are characterized by high water content, low density, high plasticity and low shear strength, and the soil sedimentary environment in this sea area is a pelagic and semi-pelagic weak hydrodynamic force environment.
出处
《海岸工程》
2006年第3期33-38,共6页
Coastal Engineering
基金
国家重大基础研究前期研究专项--中国海岸带灾害地质特征及其评价和趋势预测研究(2002CCA04800)
关键词
海底沉积物
工程地质特性
物理力学性质
bottom sediment geotechnical characteristics
physicomechanical property
