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Mechanical Triaxial Jointmeter

Mechanical Triaxial Jointmeter Overview

The Mechanical Triaxial Jointmeter is designed to measure movement in three axes across any joint, be it a construction joint in concrete or a tension crack in rock.

The Mechanical Triaxial Jointmeter is designed to monitor three way displacement (X, Y and Z) across joints or cracks between adjoining concrete and rock structures.

The Jointmeter comprises two elements; a zinc coated measurement arm and a Stainless Steel reference head, both attached to reinforcing bar embedment anchor stems.

The measurement arm incorporates three orthogonal locating bushes, designed to receive a mechanical or electronic micrometer.

The Stainless Steel reference head is a cubic anvil, with precision machined reference faces, providing a surface against which the triaxial displacement measurements are made.

Manual measurement with a mechanical gauge is a more preferred option when fewer readings are required.

Mechanical Triaxial Jointmeter Data Sheet
File Size: 980 kb
File Type: pdf
Download File

Mechanical Triaxial Jointmeter User Manual
File Size: 606 kb
File Type: pdf
Download File


Product Features

  • Reads in X, Y and Z axes
  • Accurate and precise
  • Proven in long-term monitoring
  • Simple in principle and operation

Product Benefits

  • Three way independent movement monitoring in one easy installation
  • Low and easy maintenance
  • Long working life, long-term stability and reliability

Operation

The arm anchor stems are embedded at either side of the joint, crack or fissure to be monitored, either in wet concrete at a construction joint, or grouted firmly into drilled holes in a pre-existing mass or structure, using cementatious or chemical grouts.

A temporary, removable jig maintains the two halves of the jointmeter in correct alignment at its mid-range, until the embedment medium has gained sufficient strength to be able to fully support the jointmeter.

Readings are acquired by recording the current distance from the measurement bushes to the reference anvil in X, Y and Z planes. The current readings are then subtracted from an initial base reading to give relative movement of the joint or crack.

Application

The Mechanical Triaxial Jointmeter is used for the measurement of X, Y and Z dimensional relative movement between two abutted structures or masses.

Typical applications include:
  • Concrete dam construction joints
  • Tunnel and shaft lining segments
  • Bridge construction
  • Masonry structures
  • Structural and superficial cracks

Technical Rating

As the correct installation of any monitoring sensor or system is vital to maximise performance and accuracy, Geomotion makes the following recommendations for the skill level of the installation contractor.

Technical Rating for this Product:  BASIC

As a minimum the installer has read and fully comprehends the manual, and if possible has observed these instruments or systems being installed by others.

Geomotion offer installation and monitoring services to support this system. For more information please email info@geomotion.com.au or call +61 (8) 9284 0244

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  • Home
  • About Us
    • Experience
    • Projects >
      • Dams & Reservoirs
      • Mining
      • Railways
      • Structures
      • Tunnels
      • Earthworks, Excavations & Landslides
    • Global Partners
    • History
    • Careers
  • Products & Services
    • Instrumentation >
      • Data Loggers & Cables
      • Environmental Monitoring
      • Extensometers
      • Inclination Monitoring
      • Jointmeters & Crackmeters
      • Load Cells & Pressure Cells
      • Monitoring Software >
        • Geomotion Cloud
        • InSAR Monitoring
        • Mission Monitor
      • Readouts
      • Settlement Monitoring
      • Strain Gauges
      • Temperature Sensors
      • Tiltsensors & Tiltmeters
      • Vibration Monitoring
      • Water Monitors, Meters & Piezometers
    • Monitoring Services
    • Rental & Servicing
    • Support
    • Training Sessions
  • Capabilities
    • Data Monitoring
    • Installation
    • Maintenance
    • Supply
  • News Hub
  • Contact Us
  • Client Login