Application of “Tri Figure-double Prediction Methods” in Water Disaster Prevention and Treatment Evaluation of Pingshuo NO.3 Mine Shaft Top Roof

Pingshuo NO.3 mine lies in rising end of Ningwu anticline. With the special tectonic site and landform condition, roof water of coal seam and subsurface water communicates, making top roof water disaster of mine very serious, and water disaster times and water surging amount is rarely seen in China. With advanced “tri figure-double prediction methods”, we evaluate the dangers of top roof water surging, and take consequent measures to treat water, obtaining fruitful achievement.