西南地区区域地震构造图数据库
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摘要
利用西南地区多年来积累的地震安全性评价工作成果,借助地理信息系统MapInfo强大的空间信息表达能力,使在MapInfo平台上构建西南地区区域地震构造图数据库成为可能。文中使用空间数据库与属性数据库分开设计的方法,采用多个层次、多种基本类型、多表关联的数据库格式,在MapInfo平台上构建了西南地区区域地震构造图数据库。
The assessment of regional seismotectonic environment is very important for seismic safety evaluation of engineering sites, and it is essential to compile a regional seismotectonic map for the region where engineering site is. For reusing the work products of seismic safety evaluations in past years and lessening repetitive hard work, it is a valuable work to build a database of regional seismotectonic map for regions where a number of seismic safety evaluation of engineering sites have been accomplished.In the past few years, we have accomplished many projects of seismic safety evaluation of engineering sites in southwest China. Combining with the work of other groups, it is possible to build the database of regional seismotectonic map in southwest China.As a useful desktop mapping software and GIS, MapInfo provides a powerful solution for mapping geographic information. It is selected as the platform to build our database. In database design of GIS, the spatial information and attribute information are usually separated considering the large quantity of data, efficiency and convenience in analysis and query of spatial information. Separate design of spatial database and attribute database is also convenient for extension and share of database. For meeting the requirement of seismic safety evaluation code, the regional seismotectonic map must include: 1) age, type and kinetic characteristic of faults in Qh; 2) active fault segment; 3) range and sediment thickness of active basin in Qh; 4) characteristic of modern tectonic stress field; 5) the epicenter distribution of earthquakes M≥43/4. This decides that the database of regional seismotectonic map is composed of multiple layers, multiple basic types and multiple relational tables.The database of regional seismotectonic map of southwest China on MapInfo platform is built by using the separate design of spatial database and attribute database with the structure of multiple layers, multiple data types and multiple relational tables; and basic function of the database and output method of regional seismotectonic map is showed in the end.
The assessment of regional seismotectonic environment is very important for seismic safety evaluation of engineering sites, and it is essential to compile a regional seismotectonic map for the region where engineering site is. For reusing the work products of seismic safety evaluations in past years and lessening repetitive hard work, it is a valuable work to build a database of regional seismotectonic map for regions where a number of seismic safety evaluation of engineering sites have been accomplished.In the past few years, we have accomplished many projects of seismic safety evaluation of engineering sites in southwest China. Combining with the work of other groups, it is possible to build the database of regional seismotectonic map in southwest China.As a useful desktop mapping software and GIS, MapInfo provides a powerful solution for mapping geographic information. It is selected as the platform to build our database. In database design of GIS, the spatial information and attribute information are usually separated considering the large quantity of data, efficiency and convenience in analysis and query of spatial information. Separate design of spatial database and attribute database is also convenient for extension and share of database. For meeting the requirement of seismic safety evaluation code, the regional seismotectonic map must include: 1) age, type and kinetic characteristic of faults in Qh; 2) active fault segment; 3) range and sediment thickness of active basin in Qh; 4) characteristic of modern tectonic stress field; 5) the epicenter distribution of earthquakes M≥43/4. This decides that the database of regional seismotectonic map is composed of multiple layers, multiple basic types and multiple relational tables.The database of regional seismotectonic map of southwest China on MapInfo platform is built by using the separate design of spatial database and attribute database with the structure of multiple layers, multiple data types and multiple relational tables; and basic function of the database and output method of regional seismotectonic map is showed in the end.
引文
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国家地震局震害防御司编.1995.中国历史强震目录(公元前23世纪—公元1911年)[M].北京:地震出版社.DepartmentofEarthquakeDisasterPrevention,StateSeismologicalBureau(ed).1995.CatalogueofHistoricalStrongEarthquakesofChina(from2300BCto1911AD)[M].SeismologicalPress,Beijing(inChinese).
胡聿贤主编.1999.地震安全性评价技术教程[M].北京:地震出版社.HUYuxian(ed).1999.ATechnicalCourseofSeismicSafetyEvaluation[M].SeismologicalPress,Beijing(inChinese).
屈春燕,叶洪.1998.利用GIS技术建立工程地震地质基础信息系统[J].地震地质,20(4):437—442.QUChunyan,YEHong.1998.BuildingbasicgeologicalinformationsystemforengineeringsesimologyusingthetechniqueofGIS[J].SeismologyandGeology,20(4):437—442(inChinese).
四川省地质矿产局.1991.四川省区域地质志[M].北京:地质出版社.BureauofGeologyandMineralResourcesofSichuanProvince.1991.RegionalGeologyofSichuanProvince[M].GeologicalPublishingHouse,Beijing(inChinese).
邬伦,刘瑜,张晶,等.2001.地理信息系统:原理、方法和应用[M].北京:北京大学出版社.WULun,LIUYu,ZHANGJing,etal.2001.GeographicInformationSystem:Principal,MethodandApplication[M].PekingUniversityPress,Beijing(inChinese).
叶洪,周庆,陈国光,等.2004.在中国地震动参数区划图编制中GIS信息系统的应用[J].地震地质,26(4):742—749.YEHong,ZHOUQing,CHENGuoguang,etal.2004.ApplicationofGIStothecompilationofSeismicZoningMapofChina[J].SeismologyandGeology,26(4):742—749(inChinese).
云南省地质矿产局.1990.云南省区域地质志[M].北京:地质出版社.BureauofGeologyandMineralResourcesofYunnanProvince.1990.RegionalGeologyofYunnanProvince[M].GeologicalPublishingHouse,Beijing(inChinese).
中国地震局震害防御司编.1999.中国近代强震目录(公元1912年—1990年)[M].北京:中国科学技术出版社.EarthquakeDisasterPreventionDepartment,ChinaSeismologicalBureau(ed).1999.CatalogueofModernEarthquakesofChina(from1912to1990)[M].ChineseScienceandTechnologyPress,Beijing(inChinese).
左惠强,陶夏新,谢礼立,等.1995.基于GIS的地震构造信息系统[J].自然灾害学报,4(增刊):7—13.ZUOHuiqiang,TAOXiaxin,XIELili,etal.1995.GISbasedseismotectonicinformationsystem[J].JournalofNaturalDisasters,4(Suppl):7—13(inChinese).
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