Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity Sites

For the new nuclear power plants, the hazard of liquefaction due to earthquakes should be excluded by appropriate site selection or eliminated by engineering measures. An important question is how to define a quantitative criterion for negligibility of the liquefaction hazard. In the case of operati...

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Main Authors: Tamás János Katona, Erzsébet Győri, László Tóth
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Science and Technology of Nuclear Installations
Online Access:http://dx.doi.org/10.1155/2019/5010814
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author Tamás János Katona
Erzsébet Győri
László Tóth
author_facet Tamás János Katona
Erzsébet Győri
László Tóth
author_sort Tamás János Katona
collection DOAJ
description For the new nuclear power plants, the hazard of liquefaction due to earthquakes should be excluded by appropriate site selection or eliminated by engineering measures. An important question is how to define a quantitative criterion for negligibility of the liquefaction hazard. In the case of operating plants, liquefaction can be revealed as a beyond-design-basis event. It is important to learn whether the liquefaction hazard has a safety relevance and whether there is a sufficient margin to the onset of liquefaction. The use of pseudoprobabilistic method would be practicable for the definition of probability of liquefaction, but it could result in overconservative results. In this paper, the applicability of the pseudoprobabilistic procedure is demonstrated for the sites in diffuse seismicity environment and for low hazard levels that are typical for nuclear safety considerations. Use of the procedure is demonstrated in a case study with realistic site-plant parameters.
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spelling doaj-art-0da32c0a9b5c4ac0b9c8b5085048676b2025-02-03T01:07:02ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832019-01-01201910.1155/2019/50108145010814Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity SitesTamás János Katona0Erzsébet Győri1László Tóth2University of Pécs, Boszorkány út 2, 7624 Pécs, HungaryGeodetic and Geophysical Institute of HAS Research Centre for Astronomy and Earth Sciences, Budapest, HungaryGeorisk Earthquake Engineering Ltd., Budapest, HungaryFor the new nuclear power plants, the hazard of liquefaction due to earthquakes should be excluded by appropriate site selection or eliminated by engineering measures. An important question is how to define a quantitative criterion for negligibility of the liquefaction hazard. In the case of operating plants, liquefaction can be revealed as a beyond-design-basis event. It is important to learn whether the liquefaction hazard has a safety relevance and whether there is a sufficient margin to the onset of liquefaction. The use of pseudoprobabilistic method would be practicable for the definition of probability of liquefaction, but it could result in overconservative results. In this paper, the applicability of the pseudoprobabilistic procedure is demonstrated for the sites in diffuse seismicity environment and for low hazard levels that are typical for nuclear safety considerations. Use of the procedure is demonstrated in a case study with realistic site-plant parameters.http://dx.doi.org/10.1155/2019/5010814
spellingShingle Tamás János Katona
Erzsébet Győri
László Tóth
Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity Sites
Science and Technology of Nuclear Installations
title Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity Sites
title_full Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity Sites
title_fullStr Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity Sites
title_full_unstemmed Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity Sites
title_short Applicability of Pseudoprobabilistic Method of Liquefaction Hazard Assessment for Nuclear Power Plants at Diffuse Seismicity Sites
title_sort applicability of pseudoprobabilistic method of liquefaction hazard assessment for nuclear power plants at diffuse seismicity sites
url http://dx.doi.org/10.1155/2019/5010814
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