Journals / Bitlis Eren Üniversitesi Fen Bilimleri Dergisi / 2021 / Cilt: 10 - Sayı: 4

Investigation of Çaldıran (Van) Settlement Area Under the Effect of Active Tectonics by Surface Wave Methods

Aktif Tektonizma Etkisi Altındaki Çaldıran (Van) Yerleşim Alanının Yüzey Dalgası Yöntemleriyle İncelenmesi

Pages
1435–1447
Publication Date
2022-10-12
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Two-dimensional (2D) depth cross-sections in different directions were created using the data obtained.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Çaldıran (Van) settlement area and its surroundings are located in an active region with a high earthquake potential.
📊
Key Findings & Data:Microtremor measurements were perfermed at 66 points, Multi-Channel Analysis of Surface Waves (MASW) at 56 points, and both MASW and seismic refraction measurements were carried out at 39 points in the study area.
💡
Conclusion & Impact:Two-dimensional (2D) depth cross-sections in different directions were created using the data obtained.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Çaldıran (Van) settlement area and its surroundings are located in an active region with a high earthquake potential. The right-lateral strike-slip characteristic Çaldıran fault zone is one of the most important tectonic units of the region. Shear wave velocity (Vs) is one of the fundamental parameters in the investigation of earthquake-related structural damages, local soil properties and structure-soil relations. In this study, active and passive sourced surface wave methods were applied at different measurement points in the study area in order to to detemine soil properties of the settlement area and its surroundings in Çaldıran district of city of Van. Microtremor measurements were perfermed at 66 points, Multi-Channel Analysis of Surface Waves (MASW) at 56 points, and both MASW and seismic refraction measurements were carried out at 39 points in the study area. In order to investigate the engineering properties of study area and earthquake-soil-structure relations parameters such as the amplification factor, fundamental period (t0), Vs30 value, soil classification and seismic vulnerability index (Kg) maps have been prepared. Two-dimensional (2D) depth cross-sections in different directions were created using the data obtained.

Özet

Çaldıran (Van) yerleşim alanı ve çevresi deprem üretme potansiyeli son derece fazla olan aktif bir bölgede yeralmaktadır. Sağ yönlü doğrultu atım karakterli Çaldıran fay zonu bölgenin en önemli tektonik unsurlarındandır. Depreme bağlı yapısal hasarların, yerel zemin özelliklerinin ve yapı-zemin ilişkilerinin incelenmesinde kayma dalga hızı (Vs) temel parametrelerden birisidir. Bu çalışmada, aktif ve pasif kaynaklı yüzey dalgası yöntemleri uygulanarak elde edilen Vs hızlarından Van ili Çaldıran ilçesi yerleşim alanı ve çevresinin zemin özellikleri araştırılmıştır. Çalışma alanında 66 noktada mikrotremor ölçümü, 56 serimde Yüzey Dalgalarının Çok Kanallı Analizi (MASW), 39 serimde ise hem MASW hem de sismik kırılma ölçümleri yapılmıştır. Çalışma alanının mühendislik özelliklerinin ortaya konması ve deprem-zemin-yapı ilişkilerinin incelenmesi için bölgenin büyütme, periyot (t0), ilk 30 m’deki ortalama Vs hızını temsil eden Vs30, zemin sınıfı ve sismik zayıflık indisi (Kg) haritaları hazırlanmıştır. Elde edilen veriler kullanılarak, farklı doğrultularda iki boyutlu (2B) derinlik kesitleri oluşturulmuştur.

🔖

Cite This Article

AKKAYA, İ., ALKAN, A. (2022). Investigation of Çaldıran (Van) Settlement Area Under the Effect of Active Tectonics by Surface Wave Methods. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, Cilt: 10 - Sayı: 4, 1435–1447. https://ajindex.com/articles/466631

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (13)

  1. Akkaya İ., Özvan A., Tapan M., Şengül M.A. 2015. Determining the site effects of 23 October 2011 earthquake (Van province, Turkey) on the rural areas using HVSR microtremor method. Journal of Earth System Science, 124(7), 1429-1443
  2. Akkaya İ., Özvan A., Akın M., Akın M.K., Övün U. 2018. Comparison of SPT and Vs-Based Liquefaction Analyses: A Case Study in Erciş (Van,Turkey), Acta Geophysica, 66, 21-38.
  3. Akkaya İ., Özvan A. 2019. Site Characterization in the Van Settlement (Eastern Turkey) Using Surface Waves and HVSR Microtremor Methods, Journal of Applied Geophysics, 160, 157-170
  4. Akkaya İ. 2020a. Availability of seismic vulnerability index (Kg) in the assessment of building damage in Van, Eastern Turkey. Eearthquake Engineering and Engineering Vibration,19(1), 189-204
  5. Akkaya İ. 2020b. Jeofizik Verilerinden Elde Edilen Sismik Zayıflık İndisinin Yapısal Hasar Değerlendirmesinde Kullanılabilirliği, Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, 9(4), 1711-1723
  6. Alkan A. 2021. Çaldıran (Van) yerleşim alanı zemin özelliklerinin yüzey dalgası yöntemleri ile incelenmesi, Van Yüzüncü Yıl Üniversitesi, Fen Bilimleri Enstitüsü, Yüksek Lisans tezi,111 s
  7. Nakamura Y. 1989. A Method for Dynamic Characteristics Estimation of Sub-surface Using Microtremor on the Ground Surface, Quarterly Report of Railway Technical Research Institute, 30, 25-33
  8. Nakamura Y. 2000. Clear identification of the fundamental idea of Nakamura’s technique and its applications. In: 12th World conference on earthquake engineering, New Zealand (CD-ROM) Paper No. 2656 [9] Lermo J., Chavez-Garcia F.J. 1994. Are Microtremors Useful in Site Response Evaluation?, Bulletin of the Seismological Society of America, 84, 1350-1364
  9. Park C.B., Miller R.D., Xia J. 1999. Multichannel analysis of Surface Waves, Geophysics, 64, 800-808
  10. Bard P. 1999. Microtremor measurements: a tool for site effect estimation. The effects of surface geology on seismic motion, 3, 1251-1279
  11. Xia, J., Miller, R.D., Park, C.B., 2000. Advantages of calculating shear-wave velocity from surface waves with higher modes, The Society of Exploration Geophysicists, Expanded Abstracts, 1295-1298
  12. Louie J.N. 2001. Faster, better: shear-wave velocity to 100 meters depth from refraction microtremor arrays. Bulletin of the Seismological Society of America, 91(2), 347-364
  13. Okada H. 2003. The Microtremor Survey Method, Geophysical Monograph, No.