确定核动力工程厂址历史地震影响烈度的方法分析
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摘要
介绍了3种确定核动力工程厂址历史地震影响烈度的方法,分别是历史地震等震线推断方法、古建筑震害调查资料评定方法、厂址附近农居入户震害调查评定方法。以河北某核动力工程厂址为例,用历史地震等震线推断方法判断1679年河北三河、平谷8级地震对该厂址影响烈度是Ⅶ度;1976年唐山7.8级地震古建筑震害调查资料评定厂址影响烈度是Ⅵ度,农居入户震害调查评定厂址影响烈度是Ⅴ度。
The three methods for determining the influence intensity of the historical earthquake in nuclear power plant sites are the method for extrapolation of the seismic isosematics, the methods of judging data of earthquake damage investigation in ancient buildings, and the method of investigation and judgment of earthquake damage near the sites. Taking a nuclear power plant site in Hebei Province as an example, the influence intensity of the 1679 Sanhe and Pinggu M8 earthquake on the site was judged by the method of historical earthquake and isoseismal inference, which was Ⅶ degree, the influence intensity of the site was assessed by the investigation data of ancient buildings damaged by Tangshan M7.8 earthquake in 1976 as VI degree, and the influence intensity of the site was assessed by household-to-household earthquake damage investigation as V degree.
The three methods for determining the influence intensity of the historical earthquake in nuclear power plant sites are the method for extrapolation of the seismic isosematics, the methods of judging data of earthquake damage investigation in ancient buildings, and the method of investigation and judgment of earthquake damage near the sites. Taking a nuclear power plant site in Hebei Province as an example, the influence intensity of the 1679 Sanhe and Pinggu M8 earthquake on the site was judged by the method of historical earthquake and isoseismal inference, which was Ⅶ degree, the influence intensity of the site was assessed by the investigation data of ancient buildings damaged by Tangshan M7.8 earthquake in 1976 as VI degree, and the influence intensity of the site was assessed by household-to-household earthquake damage investigation as V degree.
引文
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[2]国家地震局震害防御司.中国历史强震目录(公元前23世纪至公元1911年)[M].北京:地震出版社,1995.
[3]国家地震局地球物理研究所和复旦大学中国历史地理研究所.中国历史地震图集(清时期)[M].北京:中国地图出版社,1983.
[4]中国地震局震害防御司.中国近代地震目录(公元1912年至1990年,Ms≥4.7)[M].北京:中国科学技术出版社,1999.
[5]刘恢先.唐山大地震震害[M].北京:地震出版社,1986.
[6]唐山市建设局. 1976年唐山大地震震害[Z]. 1980.
[7]中国地震局工程力学研究所和中国地震局地球物理研究所.中国地震烈度表:GB/T17742—2008[S].北京:中国标准出版社,2009.
[8]中国地震局.地震现场工作第3部分:调查规范:GB/T18208.3—2011[S].北京:地震出版社,2012.