Liquefaction Potential Assessment and Damage Evaluation in the Gölbaşı Following the Kahramanmaraş Earthquake
21st ICSMGE, Vienna, Avusturya, 14 - 19 Haziran 2026, cilt.1, sa.1, ss.1-11, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 1
- Doi Numarası: 10.53243/icsmge2026-1377
- Basıldığı Şehir: Vienna
- Basıldığı Ülke: Avusturya
- Sayfa Sayıları: ss.1-11
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
In saturated soils, the increase in shear stresses during an earthquake can lead to a sudden loss of rigidity and strength in the soil beneath building foundations. This can result in significant collapses and loss of stability, causing the building to partially or completely lose its functionality. The earthquake that struck the Kahramanmaras region of Türkiye on February 6, 2023, caused widespread casualties and severe structural damage of this nature. Soil liquefaction played a pivotal role in the extent of the destruction in the Gölbaşı district of Adıyaman province, where buildings situated near Gölbaşı Lake exhibited varying levels of foundation damage. The observed settlement and tilt due to liquefaction varied considerably, emphasizing the complex relationship between soil conditions and structural responses. This study aims to evaluate the predictive accuracy of existing liquefaction-induced damage assessment methods by comparing them with actual settlement and tilt data collected during the research. A comprehensive field-testing program was conducted in the area, including a series of Standard Penetration Tests (SPT) and Cone Penetration Tests (CPT). In the first phase, Liquefaction Potential Index (LPI) and Liquefaction Severity Number (LSN) values were calculated based on the SPT and CPT results. In the second phase, the levels of foundation damage due to liquefaction in thirty-four of the investigated buildings were estimated using empirical formulas that are commonly accepted and available in the literature. The predicted damage levels were compared with the actual observed structural and geotechnical damage. The findings of this study offer valuable insights into the reliability and limitations of current liquefaction potential assessment methods and settlement and tilt prediction models, particularly in areas prone to liquefaction.