Study and Safety Evaluation on Chamber Blasting of Mined-Out Area in Pao-Maping Mine
A comprehensive study on topographical and geological conditions,current situation of exploration,storage characteristics of the mined-out areas,and the environment condition of the mine in Pao-Maping Mine was carried out.The millisecond controlled blasting technology was utilized to weaken the influence to the surface building and underground facilities induced by the explosion.Additionally,impact caused by shock wave on the critical facilities in the mine was assessed systemically.Simultaneously,the mine ventila tion system should be entirely tested and maintained before blasting,to ensure the mine restoration production atter the chamber bursting.Besides,safety test should be conducted on the poisonous gas in the mine after the chamber blasting.
underground mine mined-out area chamber blasting million-second blasting mine ventilation safety assessment
Zancheng Chen
School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing,China,100083
国内会议
三亚
英文
412-416
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）