Process control system of roof disaster based on PDCA cycle

In order to control the whole process of roof disaster, first estimates the movement parameters of working face roof, calculates weighting intensity, chooses the method of roof support, calculates support parameters, predicts possible types of incidents and proposes preventive measures, according to geological conditions and design parameters. Then realizes auto-drawing which is depend on technical parameters, works out operational rules intelligently and ensures the implement of support design. At the same time, the system analyses the monitoring data of support quality and roof dynamic at actual working face, then makes contrast with the design results of the roof support design expert system, using the actual data to amend the expert system step by step, to complete "self-learning" function and realize PDCA cycle. It has proved that the system can control roof disaster very well, and it is of significance to coal mine safety production.