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engineering solutions for monitoring the environment
Rock Stress Measurement
Digital HI Cell
CSIRO HI-D Cell

DIGITAL ROCK STRESS INSTRUMENTATION


FEATURES
• Digital serial output over narrow 4-wire cable
• Strain digitised in the handle - no cable loss
• ISRM recommended for Stress Determinatio
• Improved accuracy over analogue HI Cell

• Designed for monitoring during overcoring

• Short or long term monitoring of Triaxial stress
• 3D stress tensor from 1 measurment

• Fully encapsulated electronics
• Range of grouts for specific application temps




APPLICATIONS
• Rock Stress Monitoring for mining & civil Apps
• 3D Stress Determination
• Tunnelling & underground excavation industry

CSIRO HI Cell
CSIRO HI Cell

ROCK STRESS INSTRUMENTATION


FEATURES
• ISRM recommended for Stress Determination
• Designed for monitoring during overcoring

• Short or long term monitoring of Triaxial stress
• 3D stress tensor from 1 measurment

• Fully encapsulated electronics
• Range of grouts for specific application temps




APPLICATIONS
• Rock Stress Monitoring for mining & civil Apps
• 3D Stress Determination
• Tunnelling & underground excavation industry

HI Cell Recorder
HI Cell ISS Recorder

stress cell interface to ISS system


FEATURES
• Designed to measure stress using HI Cell
• Used to monitor other slowly varying sensors
Eg tilt, creep, crack, ground motion meters

• Can monitor up to 16 non-seismic channels
• Low cost




APPLICATIONS
• Better use of existing monitoring systems
• Collect 3D or triaxial stress data
• Monitor stress condition, microseismic events
• Monitor longterm stress
• Monitor problem areas of closure,
fault movement, temperature & strain

CSIRO Mini Frac
CSIRO Mini Frac

Hydraulic fracturing System

FEATURES
• Fully self-contained portable system
• Integrated wheeled trolley and cover/stand
• Dual hand pumps for test & packer
pressurisation
• Dual chart recorder system with mechanical
recorder & removable electronic recorder
• Removable power pack for IS applications
• Impression tool with integrated digital
compass
• Customisation of operational depth and
packer size on request



APPLICATIONS
• 2D Stress determination for
mining & civil applications
• Tunnelling & underground excavation
• Coal mining, underground storage excavation

Borehole Packers
Borehole Packers

BOREHOLE INSTRUMENTATION

FEATURES
Operate at high pressures
• Suitable for hydraulic fracturing
• Suitable for making impressions
• Used in small low cost E size 38mm Dia holes
• Larger sizes are available on request
• Dual hydraulic lines
• Robust and reliable




APPLICATIONS
• 2D Stress determination for
mining & civil applications
• Tunneling & underground excavation
• Coal mining, underground storage excavation

HI Cell signal conditioner
Signal Conditioner System

HI Cell to data logger interface system

FEATURES
• Precision resistors reduce temp effects
• Application specific, low power design
• Internal rechargeable battery pack & charger
• Enables sensors to be externally powered

• Rugged fully encapsulated electronics




APPLICATIONS
• Mining & civil applications
• HI Cells / ANZSI cell to data logger interface
• HI Cell monitoring
• Interfaces strain gauge based instrument to data loggers

Biaxial Chamber
Biaxial Chamber

biaxial chamber & pressurization system

FEATURES
• Multi core capability
Robust design
No disassembly required
Electroplated to prevent corrosion
• Spare membranes readily available

• Quick connect high Pressure hand pump



APPLICATIONS
• Mining & Civil Application
Lab Testing
Core Testing

VW Stress Capsule
VW Stress Capsule

vibrating wire stress monitoring RP 190/190A

FEATURES
• Vibrating wire technology
• In built thermistor for temperature monitoring
• High accuracy & sensitivity
• Low cost & excellent reliability
• Stainless steel construction
• Waterproof




APPLICATIONS
• Mining
• Underground tunnels & storage caverns

Shotcrete Stress Cell
Shotcrete Stress Cell

vibrating wire CONCRETE stress monitoring RP 180

FEATURES
• Vibrating Wire technology
• Re-pressurising tube for shotcrete re-inflation
• Low volumetric displacement
• High accuracy and sensitivity
• Stable for long term operation
• Low cost & excellent reliability
• Waterproof



APPLICATIONS
SHOTCRETE TUNNEL LININGS
• Assess radial & tangential stress
• Decipher optimum thickness

UNDERGROUND EXCAVATION LININGS
• Monitor pressure on and within linings

Strain Bridge Monitor
Strain Bridge Monitor

strain gauge readout


FEATURES
• 12 Channel
• Bridge selector
• Zero offset display
• Internal rechargeable Ni-Cd charger






APPLICATIONS
• Mining & Civil Applications
Lab Testing
HI Cell Monitoring
Readout for soil strain gauges

 
 
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