Grid partition method of fully-mechanized coal mining face area and its applicatio

In order to meet fine management requirements for fully-mechanized coal mining face production, a grid partition method of fully-mechanized coal mining face area was put forward. According to space area of fully-mechanized coal mining face and operation cycle chart, fully-mechanized coal mining face area was divided into return air terminal area, head triangle coal area, central coal mining area, tail triangle coal area and inlet air terminal area from static level. Considering three processes of coal cutting, support moving and scraper conveyor pushing in production process, the central coal mining area was further dynamically divided into coal cutting area, support moving area, scraper conveyor pushing area and transition area. Taking mine pressure characteristics analysis of fully-mechanized coal mining face as an example, it shows that analysis results of mine pressure characteristics after grid partition are more specific than those of whole working face.