Research on the aged coal mine identification and coal mine lifecycle system simulation

It gave the conception and meanings of the aged coal mine by summing up related names of the aged coal mine. In order to set up the criteria for a coal mine, it chose mine remaining service life as identification standard to identify whether a coal mine is aged or not on the basis of correlation analysis between many influence factors. By using the cluster analysis method it determines the remaining service life criteria for the aged coal mine, large and medium-size coal mine 10 a, small-size 5 a. Then it put forward a system dynamic model for a coal mine lifecycle employing identification standard and influence factors of the aged coal mine, proved correctly and effectively by fitting test of historical data. The model can simulate a coal mine lifecycle and reappear the past action characteristics, judging turning point and predicting remaining service life of a mine.