Ground failures and foundation performances in Adıyaman–Gölbaşı following the 6 February 2023 Kahramanmaraş–Türkiye Earthquake Sequence

Date

2024-01-01

Author

Çetin, Kemal Önder
Moug, Diane
Söylemez, Berkan
Ayhan, Bilal Umut
Zarzour, Moutasem
Suhaily, Ahmed Al
Akil, Bülent
UNUTMAZ, BERNA
FIRAT, SEYHAN
TEKİN, ERHAN
Çakır, Elife
Frost, David
Macedo, Jorge
Bray, Jonathan
Moss, Robb
Bassal, Patrick
Gurbuz, Ayhan
Işık, Nihat Sinan
Akin, Muge
Şahin, Arda
Duman, Emre

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The 6 February 2023 Kahramanmaraş–Türkiye earthquake sequence (M7.8 and M7.6) presents an exceptional opportunity to investigate both the effects of local soil conditions on damage patterns under strong shaking conditions and the performance of building foundations in areas that experienced ground failure. The significant ground failure and structural damage in Adıyaman–Gölbaşı triggered an intensive series of detailed reconnaissance and field surveys. This article aims to present the resulting database of observations on ground failures, building, and foundation performances. The field reconnaissance of ground failures and their effects on building performances involved aerial and walk-down surveys, including high-quality photographs taken across the town. In addition, data on building damage statistics compiled by the Ministry of Environment, Urbanization, and Climate Change were accessed and analyzed. The subsurface characteristics of the town were characterized using available data from pre-earthquake site investigation campaigns employed for town planning purposes. It is concluded that the ground failures in the town primarily resulted from soil liquefaction and cyclic softening. Most of the poor building and foundation performances and ground failures were documented in the northern part of Atatürk Boulevard, closer to the lake of Gölbaşı, where soil site characteristics were unfavorable. This revealed once again the significant effects of local soil site conditions, particularly soil liquefaction, on the intensified ground failures, foundation, and structural damage levels.

Subject Keywords

Atterberg limits, bearing capacity, damaged buildings, excessive settlement, Kahramanmaraş earthquake, lateral spread, Liquefaction, low-plasticity clay

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85205732805&origin=inward
https://hdl.handle.net/11511/111676

Collections

Department of Civil Engineering, Article