Comparison of Vertical Electric Sounding, resonance acoustic profiling and ground-penetrating radar survey informativeness for investigation of engineering geology conditions of metropolitan in Kyiv

In this paper, results of Vertical Electric Sounding (VES), resonance acoustic profiling (RAP) and ground-penetrating radar (GPR) survey are represented. The aim of investigations was identification of the higher moisture areas in the rocks, zones of tectonic fracturing and other geological elements, which can influence on the exploitation process of underground constructions of the metropolitan. Geophysical survey was done along the underground railway between the stations Ipodrom and Teremki in Kyiv, Ukraine. All methods are informative for investigations of engineering conditions of the territory and supplement results of each other. Methods VES and RAP help to trace big structural components of the territory and zones of irrigation. GPR method is informative on shallow depth (up to 7 meters) but helps to trace layering more precisely and localize shallow areas of water saturation. On the results of RAP, along the tunnel between stations Ipodrom-Teremki, water saturated and water-bearing zones were identified. These zones influence on tunnel construction and exploitation of the objects. These three methods are informative for regular monitoring of existing objects and while construction.