【摘要】 在上海市1∶5万工程地质调查工作中,通过把第四纪地质与工程地质结合研究,确定了西部湖沼平原区全新世底界标志层和河口砂岛区全新世底界大概深度,重新认识了⑤4层灰绿色粘土层的成因及湖沼平原区全新世地层的工程地质特性,从而为工程勘察和设计提供了新的理论依据。更多还原

【Abstract】 Through the engineering geological survey in north Shanghai City with 1:50000 precision, this paper combined the quaternary geology with engineering geology to make clear the symbol layer of bottom Holocene in the western lake and marsh plain area and approximate depth in estuary area in Shanghai City, and recognize the formation mechanics of the ⑤4 layer and the engineering characteristics of Holocene stratum.The study provides the theoretical foundation for the engineering survey and design.更多还原