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核电厂软岩地基地震反应研究

DOI: 10.13197/j.eeev.2015.01.44.yinhf.006, PP. 44-49

Keywords: 核电厂,软岩地基,动力学特性,地震反应

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Abstract:

软岩作为核电地基的适宜性问题主要集中在软岩的地震稳定性分析方面,目前我国还没有成熟的计算方法。论文以某核电项目的现场波速试验和室内动力学试验为基础,获得软岩动力学指标,采用一维等效线性化分析方法对核电软岩场地进行了地震反应分析,得到了初步的地震反应结果。在此基础上,综合前人研究所取得的部分成果,对不同剪切波速区段(350m/s~950m/s)的软岩,进行了地震反应计算并进行了归纳,进一步验证了软岩对地震波传播的影响规律,并对地震输入界面进行了探讨,提出对重大工程,取剪切波速850m/s作为地震输入界面。

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