Аңдатпа
The study aims to develop technological schemes for mining through zones with geological disturbances, using systems for securing and stabilising near-contour unstable rocks to reduce their disintegration along the production workings. The study included stand and mine tests of fast-hardening anchoring systems, assessment of their bearing capacity, and mathematical modelling of the stratification of the massif weakened at the contacts, with the representation of geological disturbance around the rock layers and coal seam interlayers, to determine the stresses on the workings support and assess the condition of unstable supported spans in the disturbance zones. The study has shown the effectiveness of testing the technology of supporting workings, covering different degrees of rock mass disturbance, which allows for the successful passage of workings through disturbed areas using a combined support scheme. The developed technological scheme for mining operations, based on analytical modelling and the use of advanced support technology, addressed the geomechanics of disintegration processes in rocks and the impact of mining operating parameters on the moving front of cleaning operations in underground deposits. This study confirmed a significant reduction in risks when mining through disturbed areas of the rock mass due to the use of the developed technological support scheme. In addition, analytical modelling determined the optimal parameters of underground mining operations to improve the stability of mine workings when sinking through disturbed areas.