نوع مقاله : مقاله پژوهشی
نویسندگان
1 پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران
2 پژوهشگاه بینالمللی زلزلهشناسی و مهندسی زلزله تهران
چکیده
براساس مقررات IAEA و USNRC، محاسبهی جنبش نیرومند زمین در هنگام زلزله، برای طراحی سازههای حاوی مواد پرتوزا، به ویژه نیروگاههای اتمی از اهمیت زیادی برخوردار است. در صورت عدم بهکارگیری مطالعات دقیق لرزهخیزی و وقوع زلزلههای شدید، آلایندههای بسیاری از انواع مواد پرتوزا در محیط رها میشوند و ضررهای جانی و مالی جبرانناپذیری به تأسیسات هستهای، مردم و محیط زیست وارد خواهد شد. در این پژوهش به منظور ارائهی روابط کاهندگی معتبر برای منطقهی مهم بوشهر، از شبیهسازی جنبش نیرومند زمین به روش تصادفی (احتمالی) گسل محدود استفاده شده است. نتایج به دست آمده از شبیهسازی و نیز رابطهی کاهندگی حاصل، با نتایج استخراج شده از روابط معتبر جهانی و روابط ارائه شده برای منطقهی زاگرس مقایسه شدهاند و همخوانی خوبی را نشان میدهند. مدل پیشنهادی در این مطالعه، رابطهی کاهندگی تئوری- تجربی برای منطقهی حساس بوشهر است که میتواند برای ارزیابی ایمنی نیروگاه اتمی موجود، و برای طراحی واحدهای جدید نیروگاه اتمی در این منطقه استفاده شود.
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کلیدواژهها
عنوان مقاله [English]
Simulation of Ground Motion and Development of Earthquake Attenuation Relationships for Boushehr NPP Site Using the Stochastic Finite Fault Method
نویسندگان [English]
- M. R Aram 1
- A Hasankhani 2
چکیده [English]
According to the IAEA and USNRC (United State Nuclear Regulatory Commision) regulations, calculating a strong ground motion during an earthquake is of great importance for the design of nuclear facilities, especially nuclear power plants. In the absence of precise seismic studies and in case of severe earthquakes, many radioactive contaminants are released into the environment, with irreparable physical and financial losses, hazarding the nuclear facilities, people and the environment. In this research, in order to develop the earthquake attenuation relationships for Boushehr, an important region, simulation of the ground motion was used along with the stochastic finite fault method. The results obtained from the simulation have been compared with the results obtained from the valid world relations for the Zagros region. Evidently, they show good consistency. The proposed model is a theory-empirical relationship of the Bushehr susceptible region, which can be used to assess the safety of the existing nuclear power plant in Boushehr and to design new nuclear power plants in the future.
کلیدواژهها [English]
- Nuclear Safety
- Boushehr Nuclear Power Plant
- Earthquake Simulation
- Seismic Ground Motion
- Attenuation Relation Ships
- Stochastic Finite Fault Method