Features of surface dynamic movement and deformation caused by high intensity mining with shallow depth

in order to grasp the laws of surace dynamic movement and deformation caused by high intensity mining with shallo w depth,based on the observation data of the surface movement obser atio tation in No 22407 minin face of falagou Mine in Shendong Mdining rea.,the featuresof the surace dynamic movement anddeformation.and relatve dynanic parameters were clarifed.Then the reason which surace dynamic movement and deformation appared was analzed under the conditin of the geology. The resuts showed that under the condition of high inensity mining with shallow dept. the prcess of suriace subsidence was exceptional fercethe surace movement and defomation was more concentratec,and the subsidence basement was formed raidly n the process of surace movement duration,the subsidence value of actve stage was 81.4%o of total subsidence value,the maimun c i.ient ofthe surace subsidence velocit was1.73,the maximum of subsidence velocity reached to 705 m / d,fore-nfluence distance and angle were &2 m and 57.8" respectivelythe lagging distance and angle of the maximunm suosidence velocty were 57 m and 66.3° respectively.