Analysis of effect to reactor cavity structure by steam explosion outside the reactor

GOU Hongliang

doi:10.11889/j.0253-3219.2013.hjs.36.040667

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Analysis of effect to reactor cavity structure by steam explosion outside the reactor

更新时间：2021-06-03

- Analysis of effect to reactor cavity structure by steam explosion outside the reactor
- NUCLEAR TECHNIQUES Vol. 36, Issue 4, Article number: 040667(2013)
- 作者机构：
  
  上海核工程研究设计院
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2013.hjs.36.040667
  CLC： TL353;TU311.3
- Published：2013
- 稿件说明：
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[1]勾鸿量.堆外蒸汽爆炸对堆腔底板结构的影响分析[J].核技术,2013,36(04):352-354.

GOU Hongliang. Analysis of effect to reactor cavity structure by steam explosion outside the reactor[J]. Nuclear techniques, 2013, 36(4): 040667
[1]勾鸿量.堆外蒸汽爆炸对堆腔底板结构的影响分析[J].核技术,2013,36(04):352-354. DOI： 10.11889/j.0253-3219.2013.hjs.36.040667.

GOU Hongliang. Analysis of effect to reactor cavity structure by steam explosion outside the reactor[J]. Nuclear techniques, 2013, 36(4): 040667 DOI： 10.11889/j.0253-3219.2013.hjs.36.040667.

摘要

为评估堆外蒸汽爆炸的压力脉冲对堆腔结构的完整性可能造成的破坏

建立了蒸汽爆炸对堆腔结构影响的评估方法。首先

进行蒸汽爆炸荷载作用下的堆腔结构抗弯和抗剪承载能力的验算;其次

建立了堆腔结构的弹塑性有限元模型

对堆腔结构的动力响应进行了数值模拟

得出了不同土体刚度工况下结构的破坏情况。根据计算结果得出的评估指标

可以判定堆腔底板结构的承载力和完整性

从而对泄漏事故的发生可能性进行判断。

Abstract

Background: The reactor structure may be destroyed by steam explosion

which could cause serious accident.Purpose: To evaluate the damage caused by the steam explosion outside the reactor.Methods: The method to evaluate the structural response of reactor cavity is established.Firstly

the flexural capacity and shear resistance are assessed.Secondly

based on the elastic-plastic FEM established in this paper

the dynamical response under different soil stiffness is analyzed.Results: The time displacement curve of the reactor structure is obtained.Conclusions: The structural integrality could be estimated and the possibility of leak accident can be judged.

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