Abstract: In Chambishi Copper Mine in Zambia, fractured rockmass and frequent ground pressure activity seriously damaged the along-dike laneway, thus greatly affecting the safe and normal extraction of orebodies.It was concluded through the site survey and analysis that the Chambishi's mining dynamic pressure was a vertical one and concentrated on bedding and joint-developed orebodies and surrounding rock, thus leading to a great amount of caving of laneways and stopes.In view of this, the mine adopted depressurized mining and bolting support, which effectively controlled the ground pressure, improved the utilization rate of preparation engineering and smoothly realized a safe, efficient and economic extraction of orebodies.

Key words: Chambishi Copper Mine, Ground pressure control, Depressurized support