Abstract: Abstract: In order to study the consolidation forming characteristics of the guague bulk after lateral pushing under the limited space, based on the filling and coMPacting process of the filling working surface and the working principle of the filling bracket coMPacting mechanism, the components of the filling working surface are simulated.A set of gangue-filled tamping simulation test bench with simple structure and convenient operation was developed independently. The influence of pushing force and water content on the consolidation forming characteristics of gangue bulk was studied by using the simulation test bench.The results show that the effect of pushing force and water content on the consolidation forming characteristics of gangue bulk is positively correlated. When the pushing force is greater than 2MPa and the water content is 3%, the gangue bulk begins to exhibit obvious consolidation forming characteristics.Therefore, the development and application of the gangue-filled tamping simulation test bench provides a certain reference significance for optimizing the on-site gangue-filled mining technology.