Prediction of Floor Failure Depth in Deep Coal Mining Working Face Influenced by Fault
Prediction of floor failure depth is an important part in researching the prevention and control of floor water inrush.To investigate the floor failure depth of deep coal mining working face influenced by fault,a prediction model was constructed using the multiple linear regression analysis method based on field-measured data.The accuracy of the model was then examined and its reasonableness was verified through on-site monito-ring.The results show that the proposed prediction model reduces the average relative error by at least 25.49%compared to the traditional statistical formula.Additionally,the predicted floor failure depth of the working face of the floor-containing fault is 44.96 m,which is similar to the field-monitored floor failure depth of 45.7 m.The prediction model has some practical value for predicting the floor failure depth of deep coal mining under the influence of faults and preventing floor water inrush.
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