Prediction and Evaluation of Mining Damage in Deep Coal Seam Under Villages

The existing observed data of surface movement in the coal mine indicated that the region surface deformation curve conforms to the normal distribution characteristic basically. The authors carried on the best iterative fitting to observation subsidence curve with the probability integral method, reduced the error to be smallest to seek the prediction parameters, and carried on the analysis and prediction to the damage degree of surface buildings. The result indicated that buildings in the villages were slightly damaged, the corresponding maintenance and reinforcement measures were proposed according to the estimate result.