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Present and Future Seismic Safety Guideline for NPPs in Japan

机译：日本核电厂的当前和未来地震安全指南

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摘要

After the 1995 Hyogo-ken Nanbu Earthquake, the Nuclear Safety Commission of Japan conducted a review of therncurrent Seismic Safety Guideline using a review committee containing specialists in seismology, geology, and earthquakernengineering. This review considered the following issues: 1) Seismic Source and Earthquake Ground Motionrnevaluation method; 2) Vertical Ground Motion evaluation method; and 3) Active Fault and Near-Fault Earthquakernevaluation method. Results of the review showed that the current Guideline is appropriate, even for large near-faultrnearthquakes like the Hyogo-ken Nanbu Earthquake. However, from the modern knowledge of fault movement,rnearthquake characteristics, and seismic strength of the structures learned from the Hyogo-ken Nanbu Earthquakernexperience, the Review Committee recommended in their report further advancement of the Guideline. Theyrnrecommended introducing consideration of fault rupture process, directivity of the wave propagation, nonlinear responsernof the structures, 3-D response of the structures, ultimate strength of the structures, and seismic safety performance of therntotal reactor system of structures, equipment and components. The review results also recommended increasedrnencouragement of seismic safety reliability-proving tests and continued international information exchange of seismicrnsafety technology. This paper present the philosophy for further advancement of the Guideline to comply with thernrecommendations in the Review Committee report.
机译：在1995年兵库县南部南部地震之后，日本核安全委员会使用由地震学，地质学和地震工程学专家组成的评审委员会对当前地震安全指南进行了评审。这篇综述考虑了以下问题：1）震源和地震地面运动评价方法； 2）垂直地震动评价方法； 3）主动断层和近断层地震评估方法。审查结果表明，即使对于像兵库县南部南部地震这样的大型近断层地震，目前的指南也是合适的。但是，根据从兵库县南埠地震经验中学到的结构的断层运动，地震特征和抗震强度的现代知识，审核委员会在报告中建议进一步完善该指南。他们建议引入对故障破裂过程，波传播方向，结构的非线性响应，结构的3D响应，结构的极限强度以及结构，设备和组件的总反应堆系统的地震安全性能的考虑。审查结果还建议加强对地震安全可靠性验证测试的鼓励，并继续进行国际地震安全技术信息交流。本文提出了进一步提高指南以符合审查委员会报告中建议的理念。

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