Study on the deformation and failure patterns of fractured rock mass in Jiaojia Gold Mine
The ore(rock)bodies between the-570 m and-630 m levels in Jiaojia Gold Mine are characterized by well-developed joints and fissures,prone to forming wedge-shaped unstable structures,leading to rock mass col-lapse.Geological drilling and structural surface condition surveys indicate that the rock mass in Jiaojia Gold Mine is relatively fractured,with well-developed joints and a wide range of joint occurrence distributions.This study investi-gates and summarizes the convergence deformation patterns of roadways under mining disturbances.Radar testing and analysis reveal that the damage depth of the roadways in Jiaojia Gold Mine generally remains at about 2 m,with many weak structural surfaces present,necessitating timely reinforcement measures.This research provides a rational plan for the support of the ore body and guides the reasonable selection of stope structural parameters to ensure safe production in this mining section.It offers valuable insights for managing fractured rock mass in similar mines.
rock mass deformation and failure analysisrock mass propertiesmining disturbancefractured ore bodystructural planeradar testingstope structure parameter
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