Numerical Simulation Analysis of Hydraulic Pressurized Blasting Effect

摘要：

　　During the deep-hole blasting in open pit mine,ores and rock chunk mainly appeared in the upper bench.In order to improve the broken quality of ores and rock in the upper level,the hydraulic pressurized blasting was put forward.In this paper,on the basis of mechanism analysis of pressurized hydraulic blasting,the mathematical models of different water column heights were established by LS-DYNA dynamics analysis software.Based on the calculation the stress distribution states of different water column heights were obtained.In the same time,when the water column height was 2.5m,the peak stress increased 6.66% compared with no water column.While the water column height was 4m,it increased 9.38%.Under the same conditions,the peak stress of 4m water column height increased 2.55% than that of 2.5m.The hydraulic pressurized effect of 4m water column height was better.And the hydraulic pressurized effect was in conformity with the theoretical analysis.

关键词： numerical simulation hydraulic pressurized blasting mathematic model water column

作者: LI Ming CHEN Nengge LIU Weizhou

作者单位: Maanshan Kuangyuan Blasting Engineering Co.,Ltd.,China;Sinosteel Maanshan Institute of Mining Resear Maanshan Iron and Steel Group Mining Co.,Ltd.,China Maanshan Kuangyuan Blasting Engineering Co.,Ltd.,China;Sinosteel Maanshan Institute of Mining Resear

会议类型: 国际会议

会议名称: The 4th Asian-Pacific Symposium on Blasting Techniques(第四届亚洲太平洋地区爆破技术研讨会)

会议地点: 深圳

会议语种:英文

页码: 108-112

在线出版日期: 2014-11-01（万方平台首次上网日期，不代表论文的发表时间）