3D dynamic monitoring of collapse area based on CMS-Surpac

Combine the actual situation of stope collapse area 56-7^# of Dongguashan Copper Mine in china, three-dimensional dynamic monitoring the collapse area twice using Cavity Monitoring System (CMS), taking collapse area measured data as foundation, collapse area three-dimensional model created using Surpac and gain three-dimensional configuration and the actual boundary of the collapse area accurately. Then the bottom structure of stope, the designed stope and ore heap models are established according to the stope design data. Finally, the actual boundary, volume, roof exposure area, collapse range and ore remains of the collapse area are calculated accurately through Boolean operation among the models, a new visible calculation method of integrated information visible calculation for large-scale collapse area is realized effectively. The results show that the longer of the collapse area stay is, the greater of the scope, volume and roof exposure area is. So, it is essential to suspend the blasting around the collapse area and continue to reclaim ore remains. Then backfilling the collapse area and Make plans for reclaim ore body remains.