طبقه بندي نوع خاك ايستگاه هاي شتابنگاري با روش لرزه نگاري شكست مرزي كم عمق

Site Soil Classification, using Shallow Seismic Refraction

The study of recent earthquakes and their effects show that the site soil types have different behavior during earthquakes occurring, and consequently the casualties and damages rate are directly depends on the site soil condition. The same, recorded time series including accelerograms due to earthquakes, beside the source and path parameters are affected by site soil condition. The soil types of the stations, where the accelerograms are recorded in are very essential for the accurate use of those. Therefore, the seismic refraction method used for measuring the average shear wave velocity of the upper most 30 meter layer (Vs30), which is a base for soil classification. In this project the studies did in 150 accelerographic stations of Kerman, Fars, Semnan, Golestan and parts of Boosherhrt. The main reasons for selecting these stations are their seismicity rate and the earthquake and accelerograms specifications occurred in these regions.