Assessing the seismic effect of quarry blasting at surface mineral workings on the state of underground mines using PRESS 3D URAL software
Relevance. The development of numerical and analytical methods of assessing ore in place dynamic overload from quarry blasting impact is due to the need to improve the reliability of underground mines stability analysis. Research aim is to assess the effect of blasting at surface mineral workings on underground mines stability and safety. Research methodology includes the numerical and analytical analysis of dynamic stress within ore in place containing underground mines based on the boundary integral equations method in spatial formulation. Research results. Under conditions of dynamic impact made by quarry blasting, the stability of underground mines may be preserved by means of strengthening the support through bolting with reinforced concrete roof bolts. Summary. The proposed method makes it possible to adjust the value of underground mines factor of safety with the account of the dynamic impact made by quarry blasts.