【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。更多还原

【Abstract】 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.更多还原