Jining Taiping Coal Strip Mining Under Buildings And Fill Mining Study

Based on the engineering geological theory for mining stratum displacement, taking Jining Taiping Colliery as an example, this paper established an equivalent material model test, numerical simulation and etc for optimal mining method selection. The numerical simulation and stress analysis were carried out on strip mining and filling mining at No.3 coal seam of Jining Taiping Colliery under buildings. The stress distributing of overlying strata and the ground movement and deformation were studied under various mining conditions. This paper found out the damage process, forms, range of overburden and the laws of ground movement and deformation. The minimum surface movement and deformation with the maximum recovery coefficient were found out. The efficient way of mining for coal seams under villages was determined for production at coal mines.