三门核电站60年基准期下的地震危险性分析
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摘要
为研究三门核电站主厂房的抗震性能,确定设计基准期为60a厂址的地震动,进行了地震危险性分析。按工程建筑物抗震设计规范要求,选取三门核电站工作区域内的历史地震记录,并根据该地区地质构造情况划分了潜在震源,分别给出了设计基本期为60a时三门地区63%、10%、2%、0.2%和0.01%超越概率水平的峰值加速度,计算出地震动参数,为该核电站建设提供了抗震设计依据。分析结果表明:设计基准期为60a时,三门核电站厂址水平地震加速度峰值较小,且厂址所在区域地址构造条件相对简单,不具备发生中强地震的构造条件,适合三门核电站的建设。
In this paper,seismic risk analysis of Sanmen nuclear power station is carried out for determining its anti-seismic performance and seismic design parameters.Through the data about the region and near region seismic activity,geological tectonics as well as the earth geophysical fields has been gained.According to the need of 60-year design code for anti-seismic of engineering structures,the bedrock peak acceleration rate of exceeding probability of 63%,10%,2%,0.2% and 0.01% are given respectively and seismic motion parameters are also calculated,which will provide the evidences for anti-seismic design of this nuclear power station.The result shows that the peak acceleration of this site is small in 60-year design reference period and the geological tectonics of Sanmen are suitable for nuclear power station.
In this paper,seismic risk analysis of Sanmen nuclear power station is carried out for determining its anti-seismic performance and seismic design parameters.Through the data about the region and near region seismic activity,geological tectonics as well as the earth geophysical fields has been gained.According to the need of 60-year design code for anti-seismic of engineering structures,the bedrock peak acceleration rate of exceeding probability of 63%,10%,2%,0.2% and 0.01% are given respectively and seismic motion parameters are also calculated,which will provide the evidences for anti-seismic design of this nuclear power station.The result shows that the peak acceleration of this site is small in 60-year design reference period and the geological tectonics of Sanmen are suitable for nuclear power station.
引文
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【2】高孟潭.关于地震年平均发生率问题的探讨[J].国际地震动态,1988(1).
【3】雷建成,张耀国,唐荣昌,等.地震空间分布函数的确定方法研究[J].中国地震,1997,13(1).
【4】杜国林,薛仲新,韦庆海.潜在震源区划分对地震安全性评价的影响[J].东北地震研究,2001,17(2).
【5】龚思礼.建筑抗震设计手册[K].北京:中国建筑工业出版社,2002.
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【8】贾占刚.莱芜市地震危险性分析及抗震设防区划研究[D].青岛:中国海洋大学,2003.
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