Filling mining method for fully-mechanized top coal caving working face

A filling mining method for a fully-mechanized top coal caving working face, comprising the following steps:

• at step A, dividing a fully-mechanized top coal caving working face into a filling zone and a top coal caving zone along a strike and an inclination, wherein the filling zone and the top coal caving zone are of rectangular shape and are arranged staggeredly, a plurality of filling zones and top coal caving zones are divided along the strike and the inclination of the working face and the filling zone is adjacent to the top coal caving zone;
• at step B, determining a cycle interval of the working face;
• at step C, performing supporting for the filling zone divided at step A before the fully-mechanized top coal caving working face, completing advancing and pushing procedures as well as coal caving in the top coal caving zone and performing round wood supporting in the filling zone;
• at step D, after the filling zone reaches the filling interval, disposing the filling tarpaulin behind the hydraulic support and pumping the filling paste to the filling zone;
• and
• at step E, when the working face is pushed from the top coal caving zone to the filling zone, performing supporting before the fully-mechanized top coal caving working face, performing round wood supporting behind the fully-mechanized top coal caving working face and repeating step D;
• when the working face is pushed from the filling zone to the top coal caving zone, completing step D in the filling zone and then completing advancing and pushing procedures and completing coal caving in the top coal caving zone;
• along with advance of the working face, arranging the filling zone and the top coal caving zone staggeredly to complete the filling mining of the fully-mechanized top coal caving working face.