Research and Application of Integrated Prevention Techniques of Rock Bursts in Xingcun Colliery

The problems of rock bursts in deep part of Xingcun Coalmine are very serious.The danger and influencing factors of rock bursts in two common roadways of Face E3101 were analyzed.A scheme for prevention and control of rock bursts were proposed as follows:Firsly,with SOS,EME and drilling method,the risks of rock bursts were monitored.Secondly,according to the intensity weakening principle for rock burst,the drilling method was used to relieve the pressure and coal blasting was used to soften the coal-body in order to get rid of rock burst risk.Lastly,based on the strong-weak-strong theory,the high-strength support system for relieved roadways was formed and then,an emergency rescue plan for hazardous area was developed and implemented.Practice has proved that the comprehensive application of various monitoring techniques,the forecasting,releasing and supporting techniques for rock bursts in deep mine can,to a certain extent,control the rock burst risk in deep mines.