Study On Mining With Filling Technology And Parameters Of Yuyang Coal Mine

As a special method of coal mining,filling mining is mainly used in "three bodies”.However,due to the influence of filling materials,filling cost and recovery process,the application has been greatly restricted.In order to solve the Yuyang coal mine ground surface,the contradiction between protection and development of mine,the paper based on the Yuyang coal mining geological conditions,filling in Yuyang coal mine mining with filling technology and parameters study.By analyzing the mining geological conditions and the distribution condition of the surface construction of Yuyang coal mine,the mining method is determined.Analyzed the different packing material and packing process,determine the wind-blown sand paste used as filling material of Yuyang coal mine,on the basis of that,even under the condition of mining and fully mechanized packing way for analysis and research,determine the two kinds of filling mining method is feasible in Yuyang coal mine,FLAC3D numerical simulation software,the entire mining and caving method respectively under different equivalent mining height are broken mining surface movement deformation situation has carried on the simulation analysis,the simulation results show that when the filling rate of 800%or more,can guarantee the ground surface,extent of damage within ? level,In Yuyang coal mine 2307 working face mining filling effect analysis of aeolian sand paste filling mining in Yuyang coal mine application is feasible,the filling rate of 90%or more,can ensure the surface within the building damage in I level,to ensure the safety of building,the surface material.The application and promotion value of filling mining in "three bodies " mining in Yuyang mining area.