Research on definition of hard rock shear wave velocity of site for nuclear power plant

DING Zhenkun XIA Zufeng

doi:10.11889/j.0253-3219.2013.hjs.36.040657

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Research on definition of hard rock shear wave velocity of site for nuclear power plant

更新时间：2021-06-03

- Research on definition of hard rock shear wave velocity of site for nuclear power plant
- NUCLEAR TECHNIQUES Vol. 36, Issue 4, Article number: 040657(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.36.040657
  CLC： TM623.1
- Published：2013
- 稿件说明：
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[1]丁振坤,夏祖讽.核电站场地基岩剪切波速定义范围研究[J].核技术,2013,36(04):300-303.

DING Zhenkun XIA Zufeng. Research on definition of hard rock shear wave velocity of site for nuclear power plant[J]. Nuclear techniques, 2013, 36(4): 040657
[1]丁振坤,夏祖讽.核电站场地基岩剪切波速定义范围研究[J].核技术,2013,36(04):300-303. DOI： 10.11889/j.0253-3219.2013.hjs.36.040657.

DING Zhenkun XIA Zufeng. Research on definition of hard rock shear wave velocity of site for nuclear power plant[J]. Nuclear techniques, 2013, 36(4): 040657 DOI： 10.11889/j.0253-3219.2013.hjs.36.040657.

摘要

基岩厂址的剪切波速范围定义一直是核电站选址工作的关键问题之一。为了确定可按基底固端边界考虑的硬质基岩厂址的剪切波速

选取了从1100 m/s到3200 m/s剪切波速的几种可能的基岩厂址特性。在这些场地上进行了自由场分析和土-结构相互作用分析

提取岩层反应和结构关键点中的楼面反应谱

并将结果进行比较。通过自由场分析发现

2400 m/s以下场地的地下岩层响应较地面运动都有较大程度的衰减。观察上部结构响应发现

2400 m/s以上的场地结构上反应基本不再发生本质变化。结果证明

可按基底固端边界考虑的硬基岩厂址的最小剪切波速应定义为2400 m/s。

Abstract

Background: The definition of hard rock shear wave velocity is one of the most critical issues in the work of site selection.Purpose: To make a definition of hard rock site on which the model can be assumed as fixed-base condition

a series of research had been done.Several possible hard rock site soil models were developed.Methods: Shear wave velocity of hard rock had been assumed from 1100 m/s to 3200 m/s.For each case

free field analysis and soil structure analysis had been performed.And responses in soil and key nodes of structure were compared.Results: In free field analysis

responses of models that shear wave velocity below 2400 m/s decreased a lot.In SSI analysis

structure responses didn’t change much when shear wave velocity was above 2400 m/s.Conclusions: 2400 m/s was the lowest shear wave velocity for hard rock site for fixed-base assumption.

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Related Institution

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