Geo-Underground Structure Monitoring using Acoustic Emission (Siyun)

• • Damage Location Monitoring of structures using Acoustic Emission

Rock Fracture Monitoring using Electrical Resistivity

• • The test is based on the background that electrical resistivity shows identical flow behavior with permeability

  • The influence of geometric bariables of rock joints on the resistivity was studied through lab test

  • Relationship between the clay content and the electrical resistivity was studied

Undrained Shear Strength Estimation using Shear Wave Velocity

• • Undrained shear strength is estimated using shear wave velocity measured by a penetrometer

  • Seismic signals are recorded, stacked, and analyzed to determine travel tiems via first arrival, peak-to-peak, or cross-correlation

  • Shear wave velocity profiles are calculated using the mean refracted ray path, modified interval, and refracted ray path method