فهرس المقالات Seismic hazard analysis

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  1 - Seismic Hazard Analysis of Golsar district in Rasht Metropolis.
  Fatemeh Fekri Kateh Sari Mir Mohammad Seyed Hashemi Seyed Ali Razavian Amrei
  Golsar is located in north-west of Rasht the capital city of Guilan province. This region, according to standards 2800, is identified among the regions with relatively high risk of earthquake. A set of historical and instrumental seismicity data used in radius of 200 km أکثر

  Golsar is located in north-west of Rasht the capital city of Guilan province. This region, according to standards 2800, is identified among the regions with relatively high risk of earthquake. A set of historical and instrumental seismicity data used in radius of 200 km which covers the period twelveth century until now. Kijko method has been applied for estimating for parameters considering of the available information. Estimating the peak ground acceleration on Bedrock (PGA) with five different attenuation relationship, with a probability of occurrence of 10% in 50 years, is 0.31g in Galsar Rasht region. Meanwhile in order to determine the seismic spectra based on weighed attenuation spectral relations, and also for the reason of being spectral and more suitable with the condition of the zone were used. The horizontal spectral acceleration in the 0.3 second period has the highest value for 2% and 10% probability of occurrence. The earthquake hazard in Golsar zone was calculated using SEISRISK III (1987) software. تفاصيل المقالة
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  2 - PGA Estimation for Gulab 2 Water Transfer Tunnel using Probabilistic Seismic Hazard Analysis Method (PSHA)
  Javad Salamati Maryam Haghbeen Seyed Mohammadali Sadreddini
  10.30495/geotech.2022.693980
  The Gulab 2 water transmission tunnel in order to supply water to Isfahan city in the length of 17 km from the end of the Gulab tunnel has been done. This tunnel is located in Sanandaj - Sirjan zone and lithostratigraphic the oldest formations of the tunnel site are Pal أکثر

  The Gulab 2 water transmission tunnel in order to supply water to Isfahan city in the length of 17 km from the end of the Gulab tunnel has been done. This tunnel is located in Sanandaj - Sirjan zone and lithostratigraphic the oldest formations of the tunnel site are Paleozoic metamorphic rocks. Based on geological studies, Gulab 2 tunnel in Khamiran shale formation under the alluvial plain has been drilled which mainly is directed in NW-SE. As seismotectonic, the tunnel is located in the northwest of the Zagros zone and witnesses various earthquake events with various magnitudes. Based on seismic calculations, to determine the seismic parameters by probabilistic methods, the tunnel site classification is average risk rating and Gulab 2 tunnel is level 1-important class. تفاصيل المقالة