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FIELD INSTRUMENTATION


Company Product Name Description
Durham Geo Slope Indicator Pressure Cells Total pressure, jackout pressure, vw pressure cells for tunnels, and vw stress stations.
Durham Geo Slope Indicator Settlement Cells Vented VW, Non-vented VW, and Pneumatic Settlement Cells.
GCTS Dynamic Hollow Cylinder Testing System Capable of simulating most field stress / strain path tests (static or dynamic) including plane strain, simple shear, and small shear strains.
GCTS Direct Shear Testing System for Soils Features electro-hydraulic closed-loop digital servo control of the shear and normal loads for test automation. Well suited to test coarse granular materials because of its large sample size and high load capacity.
GCTS Fredlund SWCC Device Unsaturated soil testing apparatus with great flexibility for applying matric suctions while following various stress paths
Geokon Settlement Sensors Designed for remote measurement of surface or subsurface settlement in fills, surcharges, dams, embankments, etc.
Geokon Settlement Profilers The pressure transducer gives a measure of the elevation profile of the pipe relative to the reservoir located on stable ground.
Geokon Pressure and Load Cells Designed to measure pressures and loads in earth fills, embankments, surfaces of concrete or steel structures, slurry walls, tunnel linings, etc.
Geokon Instrumented Rockbolts Comprises a vibrating wire strain gage located inside a short length of standard threaded rockbolt or rebar.
Measurand SAA (ShapeAccelArray) Rope-like array of sensors and microprocessors that fits into a small casing. Any deformation that moves the casing is accurately measured as a change in the shape of the SAA. Can be used horizontally or vertically (slope or subsidence).
RST Instruments Vibrating Wire Strain Gauges Designed to be welded to or embedded in various structures for monitoring strain.
RST Instruments Multiple Point Borehole Extensometer Measures the stability and movement behaviour of soil and rock masses.
RST Instruments Push-in Pressure Cell Designed to be pushed into the ground where it can measure total earth pressure and pore water pressure within the soil.