Numerical Simulation of Strata Behaviors Laws in Close Distance Coal Seams Influenced by Different Mining

To solve the technological problem of coal mining in close distance coal seams, through the numerical calculation. The paper analyzes 962 working face in Haizi Coal Mine of Huaibei Mining Group. Some aspects are discussed intensively under the influence of different mining, such as the stress of the coal and rock, the variation law of the plastic damaged area with the working face mining and two-roadway damage and stress variation characteristics in 962 working face.