More Information
GEO-DS-0006-Hydraulic-Borehole-Stress-Cell
3000 Borehole Stress Cell Manual
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Hydraulic Borehole Stress Cell
Description
The Model 3000 Hydraulic Borehole Stress Cell is a soft inclusion type cell consisting of an inflatable flat jack with or without platens. The cell is placed in a 50mm diameter borehole and then pressurised. Stress change is monitored with either a Bourdon tube gauge or any suitable diaphragm type pressure transducer (see Model 1200 for details) or both.
Application
For stress change monitoring in:
- Underground mines
- Tunnels
- Support pillars
- Deep excavations
- Shafts
- Applications where electronic devices can not be used (if not filled with electronic diaphragm pressure transducer)
Features
- Manual visual reading
- Simplified installation
- Corrosion resistant
- Waterproof
- Long-term stability
- Suitable for remote readout
- Rugged construction
- Not affected by long cable lengths
- Able to be connected to datalogging systems
- User specified diaphragm pressure transducer
Specifications for the Model 3000 Hydraulic Borehole Stress Cell
- Pressure ranges (MPa): 10, 16, 25, 40, 60
- Accuracy: ± 0.5 % full scale
- Borehole diameter: 51 mm
- Maximum borehole Length: 20 metres
- Measurement options: Bourdon pressure gauge and/or diaphragm pressure transducer
- Dimension: 51 mm x 250 mm long
- Weight: 3.5 kg
