Geotechnical Investigation for Wind Turbine Project | Geologist in Kutaisi, Georgia
Services Used
Georgian Geotechnical Group conducted a comprehensive geological survey in Kutaisi, Georgia for a wind turbine installation project. Our team of geologists performed in-depth geotechnical investigation including soil characterization, seismic hazard assessment, and foundation design recommendations to ensure the safe and stable placement of wind energy infrastructure in the Kutaisi region.
Challenge
Wind turbine foundations must withstand extreme dynamic loads including cyclic lateral forces, vibration, and overturning moments, requiring exceptionally well-characterized subsurface conditions. The Kutaisi region presents specific geological challenges: variable alluvial and colluvial soils with inconsistent bearing capacity, a moderate seismic hazard zone requiring careful assessment per Eurocode 8, and elevated groundwater levels that can affect foundation stability and long-term durability. Determining the optimal foundation type (shallow gravity base, piled, or hybrid) demanded a thorough understanding of the site's stratigraphy and geomechanical properties down to significant depth.
Solution
GGG's geologists deployed a multi-phase investigation program tailored to wind energy infrastructure requirements. The fieldwork included rotary borehole drilling to depths of 25-30 meters at each proposed turbine location, with continuous core sampling and in-situ testing (SPT, CPT). Laboratory analysis determined the physical-mechanical properties of each soil layer: grain size distribution, shear strength, compressibility, and moisture content. A dedicated seismic assessment evaluated site-specific ground response and liquefaction potential. Groundwater monitoring wells were installed to track seasonal fluctuations. All data was synthesized into a detailed geotechnical report with foundation type recommendations and allowable bearing pressures, enabling the structural engineers to design foundations with confidence.
Results
- Completed 6 boreholes to 25-30 m depth with full core recovery and in-situ testing at each turbine location
- Delivered comprehensive laboratory analysis of soil physical-mechanical properties across all stratigraphic layers
- Produced site-specific seismic hazard assessment including liquefaction susceptibility mapping
- Established groundwater monitoring system and seasonal fluctuation baseline for long-term foundation performance
- Issued detailed geotechnical report with foundation type recommendations and design parameters per Eurocode 7