Abstract:In order to eliminate the serious threat of 661 goaf to safety production in Dabaoshan Open-pit Mine, through the DIMINE software combined with point cloud data acquired by the 3D laser scanner, solid model of the goaf was quickly generated, and the span and area of the goaf were obtained, which can provide support for determining a reasonable blasting plan. Using open-pit mine blasting design module of the software, intelligent design of the charging and networking of the goaf blasting was carried out, and the feasibility of the scheme was verified, which was helpful to safe construction of the goaf. The blasting scheme was field tested, the results showed that safety threats of the goaf were successfully handled, which can improve work efficiency and construction accuracy.