Geotechnical Investigation and Testing in Klinča Sela
At the location planned for the construction of a new distribution and logistics center in Klinča Sela, the Geotech team carried out comprehensive geotechnical and engineering geological investigation and testing. The aim of the investigation was to provide reliable data on soil composition, mechanical behavior, and hydrogeological conditions — forming the foundation for high-quality design and safe execution of the construction works.
The investigated site is located southwest of the settlement of Klinča Sela, at altitudes ranging between 130 and 140 meters. It is an undeveloped area dominated by grassland, with the wider environment characterized by a mix of residential buildings and undeveloped plots.
Geotechnical investigation and testing
The geotechnical investigation program included a wide range of field and laboratory tests: exploratory drilling, standard penetration tests (SPT), cone penetration tests with pore pressure measurement (CPTU), geophysical methods, laboratory soil analyses, and detailed engineering geological mapping. A total of four boreholes with depths up to 15 meters were drilled, covering the complete geotechnical profile of the site.
The results of these investigations made it possible to precisely define geotechnical units and to create a soil model essential for determining bearing capacity, overall stability, and for identifying potential risks for the future construction.
Geological and geotechnical characteristics
The Klinča Sela area is entirely composed of Pliocene–Quaternary deposits (Pl, Q). Two main geotechnical units were identified during the investigation.
- GJ-1: clayey sediments — clays of low to high plasticity (CL–CH) and medium to very stiff consistency. These deposits dominate the profile with thicknesses greater than 15 meters. Laboratory testing confirmed their high plasticity but also showed relatively favorable bearing capacity.
- GJ-2: sandy sediments — clayey sands (SC) of medium density. They occur as interlayers with thicknesses ranging from 1.4 to 2.9 meters, typically embedded within clayey horizons. These are important for foundation design as they are partially permeable horizons.
Hydrogeological features
In terms of hydrogeological behavior, the clayey deposits exhibit very low permeability, while the sandy interlayers range from semi-permeable to permeable. This combination creates a specific groundwater regime that must be considered when designing foundations and drainage systems.
Seismic and safety considerations
The site is located in a seismically active zone. Accordingly, ground accelerations were analyzed in line with current standards. Results indicate that the soil at the site corresponds to soil class C, which requires particular attention in the design of earthquake-resistant structures.
Conclusion
Based on the investigations, it has been confirmed that the site has favorable conditions for the planned distribution and logistics center. Despite the high plasticity of the clayey deposits, their thickness and consistency allow safe foundation design, provided that suitable engineering solutions are implemented. The sandy interlayers require careful monitoring during excavation and construction, while the hydrogeological conditions call for an adequate stormwater drainage system and protective measures against fluctuations in the groundwater regime.
Through this investigation, Geotech d. o. o. has provided all the necessary data to support the investor and designers with a solid foundation for decision-making and the successful realization of the Klinča Sela project.
