Determination of Blast Design Parameters Based on Blast Wave Action

摘要：

Many researches pointed out thatradial compressive and tangential tensile strengths, formed by blast wave play an important role in rock breaking processes. The paper analyses results of previous analytical and experimental investigations, placing emphasis on role of blast wave action in the rock breakage. The paper describes some methodological aspects and procedures for determination of blast design parameters at open pit mines, taking into consideration rock breaking-off effect from the open surface, locations between blast holes and breakage zone radius etc. Comparison study of square and staggered patterns of blasting is given in the paper. Moreover, the paper presents summary results of trial and production blasts at Erdenet ore open pit, using practical and suggested blast design parameters, that illustrates advantage of suggested methodic.

关键词： Blast energy wave strengths compressive strength tensile strength open surface breaking off effect size of natural particles in rock mass average size of rack fragmentation

作者: Batsuuriin LAIKHANSUREN Sumiyagiin GANJARGAL Dendeviin NYAMDORJ Gaapilyn TULGA

作者单位: Blasting Technology Center, Mining Engineering School, Mongolian University of Science and Technolog Production & Technology Department, ERDENET Mining Corporation-Mongolian and Russian JV, Erdenet Cit ERDENET Mining Corporation, Erdenet City, Mongolia Mongolian Coal Association, Ulaanbaatar City, Mongolia

会议类型: 国际会议

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

会议地点: 昆明

会议语种:英文

页码: 31-34

在线出版日期: 2007-05-08（万方平台首次上网日期，不代表论文的发表时间）