宁波市大榭岛地下储油罐区地表构造及其浅层地震探测研究
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摘要
通过野外地表地质调查，建立了浙江省宁波市大榭岛地下储油罐区地表构造模型；结合浅层地震探测结果，研究了工程场区覆盖层厚度和基岩顶面埋深及深部构造特征。在此基础上，对场区的深、浅构造关系及地表和深部构造条件进行了综合分析和评价，认为：Ｆ１断裂可能从关外隧道西口北延到场区，并在近石弄堂一侧的海湾中入海；总的来说，除Ｆ１断裂带可能通过关外至石弄堂沿线附近，造成岩石连续性和完整性较差以外，场区其他大部分地区基岩的连续性和完整性较好；储油罐场区（应适当远离Ｆ１断裂）的透水性较差，是一良好的场址。
After the surface geology investigation, the surface tectonic model of the site is set up in the paper. According to the shallow seismic acquisition results, the deep tectonics such as overburden thickness and bedrock top surface depth are studied. On the bases of these, the surface and deep tectonic conditions of the site are comprehensively analyzed and assessed. It′s concluded that F1 fault extends to sea at the gulf near Shilongtang, and generally speaking, except the region along Shilongtang, the continuity and homogeneity of the bedrock are very good in most site and the permeability of bedrock in the site is not good, so it is a good site.
After the surface geology investigation, the surface tectonic model of the site is set up in the paper. According to the shallow seismic acquisition results, the deep tectonics such as overburden thickness and bedrock top surface depth are studied. On the bases of these, the surface and deep tectonic conditions of the site are comprehensively analyzed and assessed. It′s concluded that F1 fault extends to sea at the gulf near Shilongtang, and generally speaking, except the region along Shilongtang, the continuity and homogeneity of the bedrock are very good in most site and the permeability of bedrock in the site is not good, so it is a good site.
引文
1KandelJC，AmantiniE．Siteinvestigationprogramandspecifications．GEOSTOCK，1997，DIE／D／J／0004．2曲国胜，陈国光，叶洪，等．浙江东部沿海的第四纪构造运动．见：中国东南沿海第四纪地质论文集．北京：地震出版社，1992．3中国地震局地质研究所．秦山核电二、三期工程区域地震地质及断层活动性研究，1990．4浙江省工程勘察院．浙江省宁波市大榭岛工程地质水文地质勘察报告，1995．
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