The Laboratory of Geotechnical Monitoring and Technical Seismicity was founded at the Department of Geotechnics and Underground Engineering immediately after the foundation of the Faculty of Civil Engineering in 1997, since then it has been continuously developed and innovated. It is equipped with a device that allows monitoring of the rock environment or the structure in contact with the rock environment.
The laboratory also includes facilities for monitoring technical seismicity. In this area, the laboratory is equipped with all necessary hardware and software equipment necessary for measuring, evaluation and processing of short and long-term seismic signals in the amplitude and frequency domain.
The instrumentation of this laboratory, combined with the use of the Laboratory of Soil Mechanics and specialized geotechnical and hydrogeological software (Plaxis 2D, Plaxis 3D, Foundation 3D, Midas GTS, FEFLOW, GEO5, UDEC, FLAC, PFC2D, GMS, AquiferTest) geotechnics and underground construction (stability analyzes of slopes, tunnels, embankments, etc.).
In the field of technical seismicity, the laboratory equipment enables seismic monitoring to be carried out on objects according to ČSN 73 0040 “Loads of buildings by technical seismicity and their response”, it is possible to determine attenuation parameters of subsoil and seismic loads due to various sources of seismic loads .). Obtained monitoring results enable calibration of numerical models to simulate dynamic response.
The most important reference measurements in the field of technical seismicity:
- seismic response of buildings from tram traffic in the center of Ostrava
- seismic response of the “Ostravar arena” hall due to cultural events
- seismic response of the Klimkovice tunnel PTO due to heavy freight transport
- determination of seismic load on planned construction site in cadastral area Jeřmanice near Liberec
- vibration measurement in Turnov in the building of IPP ASCR, vvi
- vibration measurement at the military airport in Caslav
The following facilities are part of the Laboratory of Geotechnical Monitoring and Technical Seismicity, which enable realization and evaluation of monitoring measurements to evaluate the real behavior of natural slopes, rock walls, geotechnical or underground structures:
- LEICA RTC360 3D Scanner - High-speed scanner with integrated HDR panning system and VIS for real-time point cloud processing and registration
- Horizontal inclinometer GEOKON - monitoring of settlement in the ground, settlement of earth bodies
- Vertical inclinometer GEOKON– monitoring of displacements inside rock massif perpendicular to borehole axis, monitoring of shear surfaces
- GEOKON string piezometers – with or without tapered tip, monitoring of pore pressures in rock environment
- Flat pressure cells GEOKON - monitoring of stress in rock environment or concrete lining
- String line deformometers - monitoring of strain and derived stresses in structures
- Dilatometer GEOKON - string device for crack monitoring
- Band convergometer GEOKON - monitoring of relative displacements between two points fixed in rock massif
- Automatic leveling station LEICA - geodetic point motion monitoring, convergence monitoring
- GEOKON inclinometer - monitoring of rock block inclination and construction
- Hydrostatic leveling - monitoring of settlement of rock environment, earth and foundation structures
- ARES II - electrical resistivity (resistive) tomography, exploration of the rock environment
- three seismic stations Gaia
- three external three-component speed sensors ViGeo2
- two seismic stations BRS32 with internal speed sensors SM6-3D
- SWIProject and BRSmon evaluation software
Contact person : Ing. Martin Stolárik, Ph.D., ( martin.stolarik@vsb.cz ) , tel: +420 773 002 299