Comparison of Menard Pressuremeter Test Results around the DSİ Buildings Before and After Kahramanmaraş Earthquakes on 6th February 2023

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4. Comparison of Menard Pressuremeter Test Results around the DSİ Buildings Before and After Kahramanmaraş Earthquakes on 6th February 2023

Türkiye is a geographically active region known for its high seismicity, hosting some of the most active faults in the world. On February 6, 2023, two consecutive earthquakes of Mw 7.7 and Mw 7.6 occurred in the province of Kahramanmara within a 9-hour span. This rare and unprecedented tectonic event stands out in terms of seismic activity over the past century. This study aims to compare Menard pressuremeter test results before and after the earthquakes around the DSI (State Hydraulic Works) buildings in Kahramanmara, focusing on changes in the Menard Deformation Modulus (Em) and Limit Pressure (Pl) values. The Pressuremeter tests were conducted before the earthquake at boreholes in the planned construction area, and similar tests were repeated in similar locations after the earthquake to observe the changes in deformation modulus and limit pressure. The variability of the Em/ Pl values was statistically interpreted. This study also highlights the importance and need of detailed post-seismic evaluations of soil properties to ensure the safety requirements of building foundations. Additionally, the findings offer valuable insights for the future studies on earthquake-resistant constructions located particularly on vulnerable seismicity areas.

8th International Symposium on Pressuremeters (ISP2025)

Case Studies and Field Applications