中国矿山工程

In order to ensure that the stability of sublevel open stoping with subsequent backfilling of Sareke copper mine，and to determine the suitable stope structure and the filling process parameters, based on uniform design method, experiments respectively using FLAC3D to simulate the filling height, at the bottom of the mine roof water cement ratio at the bottom of the top strength and middle tier intensity of water-cement ratio, and the effects of three factors in mining. The measured displacement of roof, floor and roof and floor filling height, roof and floor, water cement ratio, intermediate water cement ratio relation between the filling layer. The results showed that the roof and floor filling height, the greater the water cement ratio, the greater the roof displacement is smaller, the filling effect is better. Recommended mining using contrast filling material for 1∶6 for stope filling,later can effectively control the stope wall rock deformation, to ensure the stope stability.