Trial of identification of dynamic rock mass impact on powered roof supports using Finite Elements (FEM) and Finite Difference (FDM) Methods
KWAŚNIEWSKI M., WINKLER T. SZYGUŁA M., TOKARCZYK J.
S u m m a r y
In this paper we have presented a way of dynamic modelling of rock mass impact on supporting structures with the use of finite different and finite element methods. The finite difference method has been used to construct a numerical, laminar-block rock mass model. In this model we have simulated coal seam mining with caving in roof layers and a rock mass tremor. The results of computations (the distribution of roof vibration velocity) have been used, using finite element method, to dynamically load the canopy of powered roof support.