- (tea_godoladze@iliauni.edu.ge),(zurab_javakhishvili@iliauni.edu.ge),(nato_jorjiashvili@iliauni.edu.ge),(mikheil.tserodze@iliauni.edu.ge),(david.tsiklauri@iliauni.edu.ge),(giorgi.tatunashvili@iliauni.edu.ge)
The study area is Tbilisi, the capital of Georgia, which is the most densely populated part of the region and is undergoing rapid urbanization. Tbilisi is situated in a tectonically active and stressed region, characterized by significant seismic activity. Additionally, the area features various geological rock structures and complex topography; thus, the seismic effects of an earthquake will vary across different geological zones.
Given these factors, assessing the impact of natural hazards on building sites is a critical prerequisite for construction projects. To achieve this, it is necessary to analyze soil categories and physical-mechanical properties in accordance with building codes.
In the initial phase, our objective was to collect all available materials from geophysical and geological surveys conducted in Tbilisi. We created an online database that facilitated the selection of new research locations based on an engineering-geological map. Subsequently, we performed a geophysical survey at over 100 locations and generated a map of Vs30 points across Tbilisi.
Calculating the average shear wave velocity Vs for a specific depth range (top 30 meters) can be performed using various methods. We used the seismic refraction method and multi-channel analysis of surface waves (MASW), tailored to the geological area. Field data collection, processing, and interpretation were conducted according to ASTM standards. Seismic data were processed using the SeisImager and ParkSEIS software packages.
Following the guidelines outlined in the Georgian building code and Eurocode 8, we classified the ground category at each surveyed point.
How to cite: Akubardia, D., Godoladze, T., Javakhishvili, Z., Jorjiashvili, N., Tserodze, M., Tsiklauri, D., and Tatunashvili, G.: Geophysical Analysis Of Soil Properties For Engineering-Geological Studies And Urban Planning, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-1838, https://doi.org/10.5194/egusphere-egu25-1838, 2025.
