Accuracy of Rock Properties Measured by Knocking small-Ball Inspection on a Piece of Rock
Accuracy of Rock Properties Measured by Knocking small-Ball Inspection on a Piece of Rock
Typical mechanical properties of rock materials include deformation modulus and uniaxial compressive strength. As a direct method for obtaining these properties, the authors have developed and applied Knocking Ball Inspection (KBI) that can quickly and easily provide the modulus of elasticity of rock in situ and in laboratory tests. However, KBI requires a certain size of rock mass to secure the striking surface and cannot be applied to sites where a rock mass cannot be sampled. Therefore, we developed Knocking Small-Ball Inspection (KSBI) that can be applied to the exploration of rock fragments by downsizing the body of the hammering ball. In this study, the measurement accuracy of KSBI was verified by comparing the modulus of elasticity obtained from KBI and KSBI for a rock block. In addition, the method of fixing rock fragments during KSBI was investigated, and the results are reported together with the verification results of the measurement accuracy.
Ryohsuke Tsuji
5th European Conference on Physical Modelling in Geotechnics (ECPMG2024)
New facilities, new equipment, measuring techniques
https://doi.org/10.53243/ECPMG2024-28
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom