Research and Application of Room and Pillar Mining Goaf Treatment Technology in a Phosphate Mine
A certain scale of goaf is formed in the mining process of a phosphate mine by using the de-velopment of the inner vein and the panel room and pillar method,which causes a large safety hazard to the future production.In order to eliminate or reduce the hazards of the goaf to the safe mining of mines,accord-ing to the existing situation of the goaf,engineering geological survey,goaf treatment and safety monitoring measures are studied,and the goaf treatment scheme using waste rock dry filling method is proposed,and the filling preparation and filling steps are detailed deployment.At the same time,the sealing process and sealing wall specifications of the goaf are designed,and the displacement monitoring alarm device and ground pressure monitoring alarm device are arranged according to the distribution characteristics of the goaf,so as to realize the constant monitoring and early warning and prediction of ground pressure activities in the goaf.The research results provide decision-making basis and technical support for goaf management and safe and orderly production of mines,and also provide some reference for mines with similar conditions.
room and pillar mining methodgoaf treatmentwaste rock dry fillingground pressure monitoring
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维普
