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公开(公告)号：US09243879B2
公开(公告)日：2016-01-26
申请号：US13498607
申请日：2010-09-29
摘要： A method of blasting rock at an underground blast site in which boreholes (11a, b, c) are drilled in a rock mass (10) from a drive defining face (12), each borehole is loaded with at least one charge of explosive material (13a-c, 14a-c, 15a-c), at least one detonator is placed in operative association with each charge, and a sequence of at least two initiation events is conducted to blast the rock mass, in each of which only some of the charges are initiated, by sending firing signals to only the detonators associated with said charges and in which each initiation event is a discrete user-controlled initiation event. In one of the at least two initiation events a stranded portion of the rock mass such as a pillar is created that has already been drilled and charged, and the stranded portion of the rock mass is blasted in a subsequent one or more of the at least two initiation events without personnel accessing said stranded portion. First explosive charges (13a, b, c and 15a, b, c) may be blasted in the one initiation event, leaving a pillar of stranded ore with the preloaded borehole (11b) extending through it. The detonators may be wireless.
摘要翻译： 一种在地下爆炸地点喷砂岩的方法，其中从驱动限定面（12）在岩体（10）中钻出钻孔（11a，b，c），每个钻孔装载有至少一种炸药 （13a-c，14a-c，15a-c），至少一个雷管被放置成与每个电荷操作相关联，并且进行至少两个起始事件的序列以爆炸岩体，其中每个雷管只有一些 通过仅向与所述费用相关联的雷管发送触发信号并且其中每个启动事件是离散的用户控制的启动事件来启动电荷。 在至少两个起始事件中的一个中，产生了诸如柱的岩体的绞合部分，其已经被钻孔和带电，并且岩石的绞合部分在随后的一个或多个至少 没有人员访问所述搁置部分的两个启动事件。 在一个起始事件中可能会爆炸第一个爆炸炸药（13a，b，c和15a，b，c），留下一条锚定的矿石柱，预钻孔（11b）延伸穿过它。 雷管可能是无线的。
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公开(公告)号：US20120242135A1
公开(公告)日：2012-09-27
申请号：US13498607
申请日：2010-09-29
摘要： A method of blasting rock at an underground blast site in which boreholes (11a, b, c) are drilled in a rock mass (10) from a drive defining face (12), each borehole is loaded with at least one charge of explosive material (13a-c, 14a-c, 15a-c), at least one detonator is placed in operative association with each charge, and a sequence of at least two initiation events is conducted to blast the rock mass, in each of which only some of the charges are initiated, by sending firing signals to only the detonators associated with said charges and in which each initiation event is a discrete user-controlled initiation event. In one of the at least two initiation events a stranded portion of the rock mass such as a pillar is created that has already been drilled and charged, and the stranded portion of the rock mass is blasted in a subsequent one or more of the at least two initiation events without personnel accessing said stranded portion. First explosive charges (13a, b, c and 15a, b, c) may be blasted in the one initiation event, leaving a pillar of stranded ore with the preloaded borehole (11b) extending through it. The detonators may be wireless.
摘要翻译： 一种在地下爆炸地点喷砂岩的方法，其中从驱动限定面（12）在岩体（10）中钻出钻孔（11a，b，c），每个钻孔装载有至少一种炸药 （13a-c，14a-c，15a-c），至少一个雷管被放置成与每个电荷操作相关联，并且进行至少两个起始事件的序列以爆炸岩体，其中每个雷管只有一些 通过仅向与所述费用相关联的雷管发送触发信号并且其中每个启动事件是离散的用户控制的启动事件来启动电荷。 在至少两个起始事件中的一个中，产生了诸如柱的岩体的绞合部分，其已经被钻孔和带电，并且岩石的绞合部分在随后的一个或多个至少 没有人员访问所述搁置部分的两个启动事件。 在一个起始事件中可能会爆炸第一个爆炸炸药（13a，b，c和15a，b，c），留下一条锚定的矿石柱，预钻孔（11b）延伸穿过它。 雷管可能是无线的。
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