Comparison of Multidimensional Cumulative Cutting Blasting and Smooth Blasting

摘要：

In this paper, mechanisms of smooth blasting and multidimensional cumulative cutting blasting are analyzed, and ground vibrations, increase in crack frequency, the length of radial crack, half cast factor (Half cast factor is defined as the percentage of the visible length of identifiable blasthole barrels and half casts over the total number of perimeter holes drilled.) induced by multidimensional cumulative cutting blasting and smooth blasting are compared. Compared with smooth blasting, multidimensional cumulative cutting blasting can reduce ground vibration and damage to remaining rock mass, improve half cast factor, but the structure of charge and procession of practices are more complex.

关键词： multidimensional cumulative cutting blasting smooth blasting ground vibrations crack length crack frequency half cast factor

作者: CUT Xiaorong LUO Yong

作者单位: Guangdong Handar Blasting Engineering CO., LTD, Guangzhou, China;University of Science and Technolog Guangdong Handar Blasting Engineering CO., LTD, Guangzhou, China

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: 152-155

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）