Study on the Law of Mining Damage with the Combination of Underground Mining and Open-Pit Mining

Under the combination of underground mining and open-pit mining, the two excavation bodies interact with each other and the movement of rock mass and surface is in a more complex state, leading to mining damage. This paper, targeting at the east slope of Antaibao Mine with the joint employment of underground mining and open-pit mining, aims to study the moving law of the slope rock mass and the damage mechanism to the overburden of the goaf by numerical simulation. The study results are in favor of systematically summing up the possible damage model for slope in order to reduce the effects caused by mining damage and realize the safety-production of the mine.