Displacement monitoring
Rock-IT — 4 Anchor Analogue Extensometer
Continuous monitoring to enable underground teams to recognise displacement in underground environments.
Monitor ground movement at four depths to build a more detailed picture of deformation around underground roadways. The 4 Anchor Rock-IT provides individual visual readings from four anchors, helping identify the depth and distribution of movement and inform ground support decisions.
- Four anchors monitor movement at separate depths.
- High visibility reflective scales measure up to 150mm of movement.
- Can be used to monitor movement in roof, ribs and floors.
- Easy installation with no grouting required.
- Resettable, robust and corrsion resistant stainless steel wires extend instrument life.
Available sizes
- RIT4M-10S-RG4
- Suit 27mm–35mm borehole; medium collar 38mm–45mm; and small spring anchors 27mm–35mm
- RIT4M-10M-RG4
- Suit 38mm–45mm borehole; medium collar 38mm–45mm; and medium spring anchors 38mm–45mm
- RIT4L-10L-RG4
- Suit 50mm–57mm borehole; large collar 50mm–57mm; and large spring anchors 50mm–57mm
Specifications
- Monitoring points
- 4 anchors
- Readout
- Four analogue indicator arms
- Measurement range per indicator
- 150mm
- Accuracy
- 1mm
- Scale graduations
- 1mm
- Colour block intervals
- 10mm
- Maximum No. 1 anchor depth
- 12m
- Maximum No. 2 anchor depth
- 10m
- Maximum No. 3 anchor depth
- 6m
- Maximum No. 4 anchor depth
- 3m
- Projection below roof
- 95mm
Downloads
- Brochure
-
Brochure for the Rock-IT analogue extensometers.
Download PDF
