New Progress of Study on Major Water Inrush Disaster Prevention and Control Technology in Coal Mine

In order to effectively prevent and control water from the goaf sink hole and roof to cause three major mine water inrush disasters,the paper introduced t he related detection of the goaf water,the prediction and the monitoring and measuring early warning of the roof water disaster,mine water disaster control,the water pro tection mining in Jurassic Period coalfield and other technical progress.Based on three detections,three measurements and passing round,reconstruction,water table dr op,suitable and isolation principles,a basic framework of the water prevention and control technical system was established.Certain study ideas on the detection of the hidden water flow sink hole and roof sandstone water prevention and control in Jurassic Period coalfield were provided.The practices showed that to well solve the abov e key technical problems would be the base to well conduct the mine major water inrush disaster prevention work.From the three different water disaster type preventio n and control key technology,the establishment of the mine major water inrush prevention and control technology system would be the basic access to effectively preve nt and control the mine major water disaster accidents.