CALCULATION OF THE DEFORMATION PARAMETERS OF RHEOLOGICAL ROCKMASS AND GROUND STRESSES WITH THE MEASURED DISPLACEMENT
Chen Ziyin(Shandong Alining College)
Coal measure rocks usually exhibit evident rheplogical characters, A formula, applicable to Theological rockmass that follows H-K model, showing the relationship among the relative radial displacement of a round bore-hole, the ground stresses, and parameters representing the deformation characters of rockmass, has been derived from the linear visco-elastic theory. By using this formula the ground stresses and deformation parameters could be: calculated from the measured displacement around a borehole. Since the displacement of the Theological rockmass will be further developing after the borehole is finished,displacement can be measured without using the stress-relief method. The author suggests that for the Theological rockmass measurements of displacement may be conducted in the mine openings of round section.