A note on the Goodman Jack
A Note on the Goodman Jack. Reconnaissance experiments, performed to evaluate the practical utility of the hard-rock variety of the Goodman Jack 1, reveal that the Hustrulid-T* correction adequately reconciles the discrepancy between the measured and true deformation modulus of the rock mass in the range of 30 to50 gigapascals.
Rock Mechanics Felsmechanik Mecanique des Roches↗