Products
Geotechnical Instrumentation
RockWatch Instrumentation
Itasca Codes
Geotechnical Instrumentation
Groundwork source the most appropriate instrumentation based on the specific requirements on each monitoring programme with close involvement of the client. This instrumentation is obtained from a wide range of local and international manufacturers rather than selling our own branded equipment. The extremely wide range of available geotechnical instrumentation includes:
- Stope closure instrumentation
- Off-reef excavation deformation equipment
- Elongate and pack load measurement
- Rock bolt and cable anchor load measurement
- Pull testing equipment
- Borehole extensometers for all applications
- 36mm diameter borehole cameras for depths of 10 to 40m
Data logging, telemetry and manual reading options are available for almost all types of instrumentation.
RockWatch Instrumentation
ROCKWATCH LOGGER SYSTEM
– For ground movement profiling
1. RockWatch
Logger
The Logger establishes a profile of ground movement by measuring and recording
closure changes at 5 minute intervals.
2. RockWatch
Grabber
- The Grabber wirelessly extracts data from the Logger.
- The Grabber works from a distance of up to 15m.
- On surface the Grabber is then plugged into the PC to upload data for
reporting and analysis.

3. PC and Software
The Software is provided with its
own PC and
it is compatible with
Microsoft Excel.

4. Ground Movement Profile
A Ground Movement Profile is
established using closure data
from the RockWatch Loggers.

5. Safety
Procedures
Standard Safety
Procedures can now be specified for the Robot based
on normal
and abnormal Ground
Movement Profiles.
ROCKWATCH ROBOT
– For early warning of rockfalls
How does it work?
- Rock movement often starts long before a rockfall occurs
but this movement is usually
too small to be seen.
- The RockWatch Robot can
measure these very small
movements.
- The Robot then warns stope
workers of possible rockfalls
through green, amber and
red flashing lights.
Key features
- Accurate to better than 0.5mm
- Robust and water resistant
- Lightweight and portable
- Quick and easy to install
- Reinstall as often as required
- Stoping widths up to 3.5m
- Tamper proof
| RockWatch Robot models: |
| CRT420/3L |
For mines with little or no closure.
This Robot has 3 levels of fl ashing lights with the
highest warning level starting at 2mm of movement. |
 |
0 – 1mm
1 – 2mm
> 2mm |
| CRT420/5L |
For mines with some closure.
This Robot has 5 levels of fl ashing lights with the
highest warning level starting at 6mm of movement. |
 |
0 – 1mm
1 – 2mm
2 – 4mm
4 – 6mm
> 6mm |
| CRT420/7L |
For mines with higher closure.
This Robot has 7 levels of fl ashing lights with the
highest warning level starting at 10mm of movement. |
 |
0 – 1mm
1 – 2mm
2 – 4mm
4 – 6mm
6 – 8mm
8 – 10mm
> 10mm |
Robot Patent Application No. 2010/00664 |
* Other models available
|

For further details go to www.bedrockms.co.za
See downloads page for PDF brochures and RockWatch PC Software
Itasca Codes
Sales of FLAC, FLAC3D, UDEC, 3DEC, PFC2D, PFC3D.
For further details go to www.itascacg.com/software/
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