【摘要】 高速公路建设要求尽快拆除 4幢住宅楼。拟拆楼房均为四层砖混结构 ,建筑面积共约 6 0 0 0 m2 。待爆楼房距最近干打垒危房仅 8m,环境复杂。在各楼底层布置楔形爆破口 ,预处理部分墙体后共钻凿约 6 5 0 0个炮眼 ,采用非电导爆管雷管起爆和双电雷管加强传爆的毫秒微差联合起爆网络 ,一次点火起爆 ,使 4幢楼房安全定向倒塌更多还原

【Abstract】 To meet the demand of an express highway construction, four buildings with 4 storey brick concrete structure and total area of 6000 m 2 are required to demolish as soon as possible.Due to the complicated surroundings and nearing a dangerous building, the explosive notches were laid out below the floor, about 6500 blastholes were laid out after pretreating the wall.A millisecond unite detonation network of non electric fuse detonation and bi electric fuse propagation was utilized to once through detonate, the four buildings were successfully collapsed.更多还原