Deformation in the Tunnel

  • Convergence
  • Displacements around the excavation
  • Displacement across cracks and joints
  • Differential settlement
  • Heave

Deformation of the Ground Surface and Adjacent Structures

  • Subsurface settlement
  • Settlement of utilities
  • Subsurface lateral deformation
  • Measurement of groundwater levels
  • Measurement of cracks and tilt in buildings

Stress in the Tunnel Support and Liner

  • Measurement of structural stresses
  • Loads in and between liner segments
  • Measurement of loads in rockbolts
  • Measurement of NATM tangential and radial stresses
  • Rotation and tilting of liner segments

About GEOKON

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GEOKON, founded in 1979, is a recognized world leader in the manufacture of geotechnical and structural instrumentation. Our sensors provide excellent long-term stability and proven reliability for protracted measurements in adverse environments. GEOKON has been awarded ISO 9001:2015 registration from both ANSI•ANAB, USA and UKAS of Great Britain.

GEOKON products are supported by an experienced team of factory-trained associates ready to assist with instrument design, selection and installation. We are committed to providing exceptional customer service to meet the needs of our clients.