BSM-K-SA1
Multi-gage Sensor
Summary
Suitable for measurement of 3-dimensional bedrock stress
This sensor is designed to measure three-dimensional bedrock stress with the borehole bottom strain release method. Strain gages are molded with resin. The sensor is bonded on the bottom wall of the borehole using a fixture and then subjected to over-coring to measure released strain.
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BSM-K-SA1
Bedrock Measurement
Specifications
| Methods | Kumamoto University method |
|---|---|
| Gage Patterns | 8 biaxial gages bonded (16 elements) Model with 8 triaxial gages (24 elements) can be manufactured on request. |
| Models of Strain Gage | KFGS-5-120-D16-11 |
| Gage Resistance | 120 Ω |
| Gage Factor | Approx. 2.1 |
| Gage Length | 5 mm |
| Young’s Modulus of Mold Material | 100 MPa |
| Borehole Diameter | 65 mm |
Remarks
●Compatible with the conical-ended borehole over-coring technique of The Japan Geotechnical Society
●Installation will be performed by a specialized company. Contact a KYOWA representative for details.