Abstract
This study aimed to investigate the site characterization of the Senirkent Basin (Isparta) by using the microtremor (H/V) and surface wave analysis (ReMi) methods. Senirkent district, which is located on the foothill of the Kapi Mountain, are prone to seismic and landslide hazards. After the last landslip disaster (1995), the city has continued to develop on the alluvial basin. The microtremor data collected at 41 stations were analyzed. The predominant frequency and the amplification of the soil were found to be in the range of 1.8–6.6 Hz and 0.8–6.8, respectively. These are 4.0–6.8 Hz and 1–2.5 around the slope of the Kapi Mountain and 0.8–3.6 Hz and 3.0–6.6 at alluvium deposits of the valley. The ReMi data collected along 41 profiles were analyzed to obtain a Vs30 map. The soil classifications were done by using Vs30 values according to NEHRP soil classification criteria. The results showed that the southern area of the study had better soil conditions with Vs30 between 360–1160 m/s and soil class between C and B. The alluvium deposits on the north are relatively low with Vs30 in the range of 260–360 m/s and soil class D.
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