The aim of this Study is to analyze the existing condition of buildings and engineering structures within the geotechnical impact zone of the second phase of Line 1 and Line 2 of the Belgrade Metro. Based on the assessment of the existing condition of buildings and engineering structures, their inherent sensitivity to the impacts of the construction of tunnel sections, stations and accompanying metro infrastructure will be determined. The analysis will serve to apply the most modern methods of mitigating the impact of construction. The main cause of potential damage to buildings and engineering structures is soil movement resulting from: the passage of the "TVM" machine (Tunnel Boring Machine), excavation works of stations, accompanying structures (vertical openings for ventilation and evacuation) and sections in the "Cut&Cover" excavation, possible changes in the groundwater level during construction, as well as other causes resulting from pile driving, soil compaction, etc. The objectives of the Survey of the Existing Condition of Buildings and Structures are as follows:
- Inspection of the interior and exterior of existing buildings and engineering structures within the GZU (Geotechnical Impact Zone)
- Verification and assessment of the condition of existing buildings and engineering structures within the GZU in order to define their inherent sensitivity to soil deformation
- Verification and assessment of the condition of existing buildings and engineering structures within the scope of the GZU in order to define their inherent sensitivity to vibrations. This Study applies to buildings and engineering structures in a broad sense and includes the following:
-All types of buildings (houses, buildings, skyscrapers, historical monuments, etc.) and their immediate surroundings
-Underground structures such as ventilation shafts, garages, underground pedestrian passages, etc.
-Bridges, viaducts, etc.
