The Similar Material Simulation Experiment of Strata Movement Rule in Mining Subsidence

In the research of mining subsidence movement rule,caused by the movement of overlying strata and surface,using the method of similar materials simulation,it can be expressed in the working face advancing process,horizontal displacement,overlying strata and surface subsidence caused by its movement rule directly.Experiments show that,with the working face advancing,the overlying strata movement strengthens gradually,and horizontal displacement and subsidence increases gradually.Until it reaches the full subsidence,horizontal displacement and subsidence will attenuate and stabilize gradually.