压水堆核电厂联合泵房不均匀地基适应性分析

Uneven foundation adaptability analysis for combined pumping station of pressurized water reactor plant

针对联合泵房不均匀地基,应用有限元软件ANSYS建立地基与上部结构三维有限元整体模型,进行静力分析,并针对强风化岩弹性模量和换填深度进行敏感性分析,分析结果表明:基础接地率、基础抗滑、抗倾覆、抗浮均满足要求,楼层反应谱计算值均小于参考电站的楼层反应谱设计谱。

To assess the influence of the uneven foundation for the combined pumping station, an integrative model including the foundation and super-structure is generated using the finite element software ANSYS. Based on the geotechnical parameters, the static analysis and the sensitivity analysis to the modulus and the replacement depth of the highly weathered rock are carried out, results show that the foundation grounding, foun dation anti-sliding, overturning, anti-floating can satisfy the requirements. The foundation site response is also studied, from the analysis, the calculated floor response spectra is under the design spectrum of the reference nuclear power station.