河北南堡-曹妃甸海域工程地质条件及海底稳定性评价
发布时间：2018-07-28 17:38
【摘要】：本文通过土工实验分析,发现河北南堡-曹妃甸海域沉积物主要由淤泥、粉砂、黏土和粉土组成,约占总沉积物的85%,另含有少量的淤泥质黏土、粉质黏土、细砂和中砂。综合归纳南堡-曹妃甸海域的工程地质条件,根据影响研究区工程地质条件差异性最突出的因素即海底地形地貌、潜在地质灾害分布,结合海底土质类型及其物理力学性质等条件,将研究区划为4个工程地质区,分别为近岸水下岸坡混合土工程地质区(Ⅰ)、侵蚀平原、洼地砂质土工程地质区(Ⅱ)、侵蚀洼地混合土工程地质区(Ⅲ)、陆架堆积平原细粒土工程地质区(Ⅳ)。通过海洋环境因素、灾害地质条件、地震活动性、海底土体稳定性等方面对各工程地质区进行海底稳定性评价,4个工程地质区的稳定性分别为Ⅰ区:不稳定区;Ⅱ区:较稳定区;Ⅲ区:较不稳定区;Ⅳ区:稳定区。研究成果对该地区的海底工程建设和防灾减灾具有重要的指导意义。
[Abstract]:Based on the analysis of geotechnical experiments, it is found that the sediments in the Nanbao-Caofeidian area of Hebei Province are mainly composed of silt, clay and silt, which account for about 85% of the total sediment, and also contain a small amount of silt clay, silty clay, fine sand and medium sand. The engineering geological conditions in Nanbao Caofeidian sea area are summarized synthetically. According to the most prominent factors affecting the difference of engineering geological conditions in the study area, namely, the submarine topography and geomorphology, the distribution of potential geological hazards, According to the conditions of submarine soil types and physical and mechanical properties, the study is divided into four engineering geological areas, one is the engineering geological area of the mixed soil on the nearshore underwater bank slope (鈪，
本文编号：2151097
[Abstract]:Based on the analysis of geotechnical experiments, it is found that the sediments in the Nanbao-Caofeidian area of Hebei Province are mainly composed of silt, clay and silt, which account for about 85% of the total sediment, and also contain a small amount of silt clay, silty clay, fine sand and medium sand. The engineering geological conditions in Nanbao Caofeidian sea area are summarized synthetically. According to the most prominent factors affecting the difference of engineering geological conditions in the study area, namely, the submarine topography and geomorphology, the distribution of potential geological hazards, According to the conditions of submarine soil types and physical and mechanical properties, the study is divided into four engineering geological areas, one is the engineering geological area of the mixed soil on the nearshore underwater bank slope (鈪，
本文编号：2151097
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