Geophysical Investigation Methods: Rapid Subsurface Mapping (ERT, SRT, GPR) скачать в хорошем качестве

Geophysical Investigation Methods: Rapid Subsurface Mapping (ERT, SRT, GPR)

The video is designed as an in-depth explainer that begins by introducing the code name and then dives into the technical specifics of geophysical methods: • Purpose of Geophysical Investigation: Explaining how these tests provide a rapid means of evaluating stratification and underground utilities to help plan the depth and extent of later in-situ and laboratory tests. • Geophysical Test Methods (Table 1): The video uses visual examples to explain the various tests and the properties they measure, including: Electrical Resistivity Test (ERT): Measuring resistivity to assess soil and rock profiles over large areas. ◦ Seismic Refraction Test (SRT): Using primary wave velocities to identify layer sequences and bedrock depth. ◦ Advanced Seismic Tests (CHST, DHST, SASW, MASW): Measuring shear and primary wave velocities to determine dynamic modulus and stiffness. ◦ Ground Penetrating Radar (GPR): Using electromagnetic reflection to identify buried objects like pipelines and conduits. ◦ Thermal Resistivity: Determining the thermal conductivity of the ground for systems like underground transmission lines. #Geophysics #GeotechnicalEngineering #CivilEngineering #SubsurfaceMapping #GeophysicalSurvey#SeismicRefraction #ElectricalResistivity #GPR #GroundPenetratingRadar #SoilResistivity #MASW #ThermalResistivity