Dear Heinrich:
You may get in touch with Herrenknecht AG in Germany. I recall seeing
one of their rock (Gripper?) TBMs equipped with a seismic device that
checks rock strength at the face of the TBM. They may have developed
some kind of chart correlating P and S-wave velocities with rock strength.
Regards,
Jit Sharma
Associate Professor of Geotechnical Engineering
University of Saskatchewan, Saskatoon, Canada
H. Heinz wrote:
> Does anybody have experience with correlating shear wave velocities with
> rock rippability?
>
> Heinrich Heinz
> Calgary, Canada
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