A Model 4425 Convergence Meter is used to detect wall deformation in an underground mine.
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A Model 4910 Instrumented Rockbolt is used to measure loads in tiebacks used to stabilize the ground in an underground mine.
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A Model 4000 Arc Weldable Strain Gauge is used for long-term strain measurement of a steel structure in an underground mine.
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A Model 1200 (A-4) Multiple Point Rod Extensometer, with Snap-Ring Anchors, is used to determine fracturing in the roof and/or walls of an underground mine.
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A Model 4420 Vibrating Wire (VW) Crackmeter is used to measure movement across a surface crack in an underground mine.
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A Model 1610 Tape Extensometer is used to measure small changes in the distance between opposite walls in an underground mine.
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The Model 4425 VW Convergence Meter detects deformation by measuring the contraction (or elongation) between 2 anchor points fixed in the walls of the underground mine.
The Model 4910 Instrumented Rockbolt comprises a vibrating wire strain gauge located inside a short length of standard threaded rockbolt or rebar to measure loads in tiebacks used for stabilization.
The Model 4000 VW Strain Gauge is designed primarily for arc welding to steel structures for long-term strain measurements of steel structures including tunnel linings, excavation bracing, arches, struts, etc.
The Model A-4 Multiple Point Rod Extensometer, with Snap-Ring Anchors, is quickly and easily installed in boreholes in hard or competent rock to measure displacement, deformation and/or subsidence above tunnel and mine openings.
The Model 4420 VW Crackmeter is designed to measure movement across joints (e.g. construction joints in buildings, bridges, pipelines, dams, etc.), tension cracks and joints in rock and concrete.
The Model 1610 Tape Extensometer is designed to measure small changes in the distance between opposite walls or between the roof and floor of excavations, tunnels, or mine openings.
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.
