Investigation of Soil Properties based on Accelerometer Stations using Earthquake Recording: The Case Study of Hatay, Turkey

Abstract

The earthquake-soil behaviour characteristics of the study area were investigated by using Horizontal/Vertical Spectral Ratio (HVSR) method with earthquake data recorded by 27 accelerometers in Hatay and near surroundings. It is observed that soil amplification values ​​of Hatay and its vicinity vary from 2 to 8. The soil amplification values reach to 8 at between Iskenderun-Dortyol and Yakacik region. The soil amplification of Hatay and surroundings vary between 4-5. At 0.5 Hz, amplification values ​​range from 1.5 to 3.0. The largest effect is in the coastal area of ​​Iskenderun with ~3 HVSR amplification at 0.5 Hz. Amplification ​​in city centre at 1.0 Hz is 5-6, at Kirikhan, Aktepe and Iskenderun coast, it is ~3. At 2.5 Hz, at Aktepe and its North, it reaches ~ 6.

Keywords

• HVSR,fundamental soil frequency,earthquake,accelerometer,Hatay

İvme-Ölçer istasyonları altındaki Zemin Özelliklerinin Deprem Kaydı Kullanılarak İncelenmesi: Hatay Örneği, Türkiye

Abstract

Hatay ili ve yakın çevresinde farklı zemin türleri üzerinde yer alan 27 adet ivme-ölçer tarafından kaydedilen deprem verisi yardımıyla Yatay/Düşey Spektral Oran (HVSR) yöntemi kullanılarak çalışma alanının deprem-zemin ortak davranış özellikleri araştırılmıştır. Hatay ve yakın çevresinin HVSR büyütme değerlerinin 2-8 arasında değiştiği gözlenmektedir. İskenderun ve Dörtyol arasında, Yakacık ve yakın çevresinde zemin büyütme değerleri 8’e kadar ulaşmaktadır. Hatay ve çevresinde ise 4 ile 5 arasında değişmektedir. Farklı frekanslarda; 0.5 Hz’de büyütme değerleri 1.5-3.0 arasında değişmektedir. Bu frekanstaki en büyük etki yaklaşık 3 HVSR büyütmesi ile İskenderun sahil kesimindedir. 1.0 Hz’de Hatay merkezde büyütme değerleri 5-6 arasında, Kırıkhan, Aktepe ve İskenderun sahil kesiminde 3 civarındandır. 2.5 Hz’de Aktepe ve kuzeyinde gözlenen büyütmeler ise ~6’ya kadar ulaşmaktadır.

Keywords

• HVSR,zemin hakim frekansı,deprem,ivme-ölçer,Hatay

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