Investigation of the deformation mechanism of underground excavations in salt and potash mines using in situ deformation measurements

CIM Bulletin, Vol. 95, No. 1060, 2002

S. Kwon and J.W. Wilson

In salt and potash mines, the time-dependent deformation mechanism should be clearly understood based on in situ measurements to predict the performance of a mining design. In this study, in situ deformation measurements from the Waste Isolation Pilot Plant (WIPP) and other salt and potash mines were used to determine the transition time from the primary to the secondary creep stage and to investigate the influence of adjacent excavations such as a nearby tunnel excavation, panel excavation and/or pillar extraction on rock deformation.
Keywords: Underground mining, In situ measurements, Potash, Deformation, Excavation