The Characteristics of Liquefied Soil Ejecta Retrieved after the February 6, 2023 Kahramanmaras-Turkiye Earthquake Sequence

抄録

Following the M7.8 and M7.6 Pazarcik and Elbistan-Kahramanmaras-Turkiye earthquake sequence, 81 soil liquefaction sites with surface manifestations in the form of soil ejecta, lateral spreading, and/or excessive settlement were studied. This paper presents the results of preliminary liquefaction susceptibility assessments performed at a suite of these soil sites. Soil classification tests were performed on potentially liquefiable soil layers and the retrieved ejecta. The classification test results revealed that clean sands and non-plastic silts are vulnerable to seismic soil liquefaction. Moreover, low to high plasticity clayey ejecta collected at Adiyaman-Golbasi and Hatay Airport sites confirmed that clayey soils with plasticity index values as high as 37%, liquefied during the events.