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Seismic Tomography for Monitoring Stress State of Pillars in Underground Mines
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Engineering and Mining Geophysics 2020, Sep 2020, Volume 2020, p.1 - 7
Abstract
The paper presents a methodology and results of seismic tomographic studies for instrumental monitoring of the rock mass state between the approaching mining fronts at the Oleniy Ruchey underground mine. Velocity and difference models of the studied area are shown, which allow tracking the formation and migration of low-and high-velocity zones as mining operations progress. The stress-strain state for each measurement stage is analysed by comparing the average values of longitudinal wave velocities for the rocks composing the rock massif with the obtained values. The dynamics of the pillar’s stress-strain state is characterized by difference models. Being combined with other in-situ and numerical methods, the results of seismic tomographic studies allow planning the necessary preventive measures and contribute to improving the safety of mining operations.