Prediction and comprehensive prevention and control technology for instability disasters in coal mine goafs
To reduce the probability of instability disasters in coal mine goafs,ensure the safety of surrounding residents'lives and prop-erty,and avoid large-scale ecological damage caused by instability disasters in goafs,prediction and prevention and control of instability disasters in coal mine goafs were carried out.By using rough set theory to eliminate redundant and defective information,combined with the catastrophe progression method,a prediction index system for unstable disasters was obtained.The entropy weight theory was used to obtain the corresponding disaster weights for geological,hydrological,environmental,and structural indicators.The confidence was intro-duced to improve the prediction and recognition criteria and complete the prediction of unstable disasters.On this basis,comprehensive prevention and control technology was used to reduce the frequency of natural disasters in coal mine goaf.The experimental results show that the proposed method has high accuracy in predicting instability disasters in coal mine goafs,and comprehensive prevention and con-trol technology can effectively improve the safety of coal mine goafs.
coal mine goafprediction of instability disastercomprehensive prevention and control technologyrough setcatastrophe progression method
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