Water prediction of roof abscission layer deposition and explore put scheme in working face

The key technology of solving abscission layer of water gushing water in working face is the prediction of roof abscission layer of water and water positioning.Working face of roof abscission layer water is the water positioning was put forward based on the field measurement of roof flowing in 1121 was first working face and theory analysis roof flowing mechanism.Formation mechanism of roof abscission layer water was analyzed and measures of prevention and control of water were made.A explore put scheme of roof abscission layer water in 1121 working face in Hongliu mine was put forward according to the forecast of abscission layer of water product based on the cycle flowing and field emissions in working face.The application is successful in the field.