In this paper, based on physics resemble simulation and numerical simulation, grads-composite board mechanics model on overlying strata was obtained by studying shallower coal seam mining under thin base rock in SHENDONG GROUP.
After analyzed the mine geological and hydrogeological conditions of the mine area, considered that the mine water filling source is stratifugic water from overlying strata.
Meanwhile, the goaf is filled by the falling gangue, which can certainly play a role in supporting the roof and overlying strata, so the strip pillar can keep stable for a long time.
According to simulation results, along with working face being advanced, the failure processes and features, and weighting of overlying strata, were analyzed.
In different engineering geological conditions, the construction process, the migration of overlying strata have different rules.
