核电站反应堆厂房基础与地基的抗震稳定性研究
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摘要
以位于强震区的国外某核电站2号机组为研究对象,提出了基于有限元法的考虑土-结构相互作用影响的反应堆厂房结构-地基系统抗震能力的评价方法。从稳定、变形、地基承载能力等方面,对建在具有断层和破碎带岩性地基上的核电站的抗震安全性进行了研究,探讨了反应堆厂房基础和地基的地震反应特性。结果表明,在按新的核电站抗震设防标准生成的场地最大可信地震作用下该反应堆厂房基础和地基可以满足抗震稳定性要求。本文方法和相关结论对我国的核电站抗震安全性评价有一定的借鉴意义。
By use of finite element method,an analysis approach to evaluate the seismic capability of a system with the reactor building structure and foundation considering the effect of soil-structure interaction is proposed for the nuclear power station unit 2 located in a strong earthquake area abroad.From the viewpoint of the stability,deformation and bearing capability of the foundation,the seismic safety of the nuclear power station on the rock foundation with some faults and fracture zones is studied,and the seismic response behavior of the reactor building basement and foundation is investigated.The result shows that the reactor building basement and foundation can meet the requirements of seismic stability under the maximum credible earthquake of the site which is given according to new seismic fortification criteria for nuclear power station.The proposed method and the relevant conclusion in this paper have practical reference significance for seismic safety evaluation of nuclear power stations in our country.
By use of finite element method,an analysis approach to evaluate the seismic capability of a system with the reactor building structure and foundation considering the effect of soil-structure interaction is proposed for the nuclear power station unit 2 located in a strong earthquake area abroad.From the viewpoint of the stability,deformation and bearing capability of the foundation,the seismic safety of the nuclear power station on the rock foundation with some faults and fracture zones is studied,and the seismic response behavior of the reactor building basement and foundation is investigated.The result shows that the reactor building basement and foundation can meet the requirements of seismic stability under the maximum credible earthquake of the site which is given according to new seismic fortification criteria for nuclear power station.The proposed method and the relevant conclusion in this paper have practical reference significance for seismic safety evaluation of nuclear power stations in our country.
引文
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[9]何佳,王海涛.核电厂电气厂房地震响应敏感性分析[J].核动力工程,2012,33(2):9-13.HE Jia,WANG Haitao.Sensitivity analysis of seismic behavior of nuclear power plant electrical building[J].Nuclear Power Engineering,2012,33(2):9-13.(in Chinese)
[2]王天运,任辉启,刘国强,等.考虑土-结构相互作用的核电站动力分析方法[J].岩石力学与工程学报,2004,23(22):3840-3845.WANG Tianyun,REN Huiqi,LIU Guoqiang,et al.Dynamic analytic methods of nuclear power station structures considering soil and structure interaction[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(22):3840-3845.(in Chinese)
[3]李忠诚,李忠献.大亚湾核电厂反应堆厂房地震响应分析评估[J].核动力工程,2005,26(6):614-617.LI Zhongcheng,LI Zhongxian.Analysis and evaluation of seismic response of reactor building for Daya Bay nuclear power plant[J].Nuclear Power Engineering,2005,26(6):614-617.(in Chinese)
[4]日本電気協会,原子力規格委員会.JEAC4601-2008[S].原子力発電所耐震設計技術規程.
[5]Nakamura N,Yabushita N,Suzuki T,et al.Analyses of reactor building by 3D nonlinear FEM models considering basemat uplift for simultaneous horizontal and vertical ground motions[J].Nuclear Engineering and Design,2008,238:3551-3560.
[6]李忠诚,董占发,李相业,等.百万千瓦级压水堆核电厂核岛土建设计的厂址适应性分析[J].核动力工程,2010,31(2):9-13.LI Zhongcheng,DONG Zhanfa,LI Xiangye,et al.Site adaptability study on nuclear island buildings design for 1000 MW pressurized water reactor plant[J].Nuclear Power Engineering,2010,31(2):9-13.(in Chinese)
[7]Viallet E,LabbéP,Gallitre E,et al.Seismic re-evaluation of EDF Bugey 900 PWR nuclear power plant in the frame of the 3rd periodic safety review[J].Nuclear Engineering and Design,2010,240:1306-1319.
[8]裴强,薛志成,胡波.考虑地基不均匀性核反应堆地震响应分析[J].地震工程与工程振动,2011,31(6):166-173.PEI Qiang,XUE Zhicheng,HU Bo.Seismic response analysis of nuclear reactor buildings considering inhomogeneity of their foundations[J].Journal of Earthquake Engineering and Engineering Vibration,2011,31(6):166-173.(in Chinese)
[9]何佳,王海涛.核电厂电气厂房地震响应敏感性分析[J].核动力工程,2012,33(2):9-13.HE Jia,WANG Haitao.Sensitivity analysis of seismic behavior of nuclear power plant electrical building[J].Nuclear Power Engineering,2012,33(2):9-13.(in Chinese)
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