Project

The length of the second phase of Line 1 is 4.83 km with 5 stations. The length of Line 2 is 23.94 km with 24 stations. The report presented the state and properties of rock masses, geomechanical characteristics of rocks and soil, hydrogeological characteristics issued on the route of the second phase of Line 1 and Line 2 of the metro, on the basis of which it defined geotechnical conditions and recommendations for the construction of the future metro line at the level of the Conceptual Project. Preparation of the Elaborate was preceded by field work and laboratory tests of water, soil and rock samples. Field work included exploratory drilling, mapping of drilled cores, water, soil and rock sampling, SPT, CPT tests, pouring tests and geophysical measurements in boreholes (down hole test) and measurements on the field surface. On the route of the second phase of Line 1 and Line 2 of the Belgrade metro, 284 exploratory boreholes with a total depth of 10,530 meters were drilled. Laboratory tests that were carried out in the geomechanical laboratory of the "Institute for Mining and Metallurgy Bor" and the "Mining Institute"-Belgrade and included tests on rock and soil samples (swelling, point load test, uniaxial strength, triaxial tests, abrasiveness, etc.). Geoing Group (December 2023).