爆炸与冲击2017，Vol.37Issue(4)：661-669,9.DOI:10.11883/1001-1455(2017)04-0661-09
侧向起爆条件下的爆炸能量分布及其对破岩效果的影响
Explosion energy distribution by side initiation and its effects on rock fragmentation
摘要
Abstract
To improve the energy utilization and fragmentation effect in rock blasting,the explosion energy partitions of end initiation and continuous side initiation were analyzed.In addition,field blasting tests were conducted in Xiangshuigou Quarry,and the results show significant differences in the partition of shock and gas energy between the two initiation methods.The effective energy utilization of these two initiation methods in different rocks varies considerably.On this basis,a selection princi ple of initiation methods for rocks with different intensities was put forward.The continuous side initiation with a detonating cord is advantageous in soft and fissured rocks and contour blasting,while blasting for graded material in hard rock,the end initiation is recommended instead of the side initiation.关键词
岩石爆破/破碎效应/起爆方式/能量分布/冲击能/气体能Key words
rock blasting/fragmentation effect/initiation method/energy partition/shock energy/gas energy分类
数理科学引用本文复制引用
冷振东,卢文波,范勇,陈明,严鹏..侧向起爆条件下的爆炸能量分布及其对破岩效果的影响[J].爆炸与冲击,2017,37(4):661-669,9.基金项目
国家重点基础研究发展计划项目(2011CB013501) （2011CB013501）
国家自然科学基金项目(51609127) （51609127）
