220 kV超高压线下某矿山控制爆破方案设计

Design of the Controlled Blasting Scheme of a Mine under 220 kV Ultra-high Pressure Line

以某凹陷露天铁矿为例,为确保矿山周边500 m范围内220 kV超高压线安全,设计了控制爆破方案并采取了安全防护措施,有效降低了爆破振动、飞石、冲击波等爆破危害对220 kV超高压线、干选厂等生产生活设施的破坏,可供类似工程参考。

Taking a sunken open-pit iron mine as an example,in order to ensure the safety of 220 kV ultra-high voltage line within 500 m around the mine,a controlled blasting scheme and safety protection measures are designed,so to reduce the damage of blasting vibration,flying stones and shock waves to 220 kV ultra-high voltage line and dry concentrator,and to ensure the safety and economy of the mine.Good results have been achieved in safety production and economic benefits,which can provide reference for the similar projects.