炮孔轴向不同间隔方式的爆破地震效应研究

英文篇名：Influence of different interval charge on seism effect of blasting
中文刊名：安全与环境学报
英文刊名：Journal of Safety and Environment
作者：吕淑然
英文作者：LV Shu-ran(Safety and Environment School ; Capital University of Economics Business ; Beijing 100070 ; China)
中文关键词：轴向间隔装药 ; 间隔装药方式 ; 地震效应
英文关键词：axial decked charge structure ; decked charge fashion ; seismic effect
出版日期：2006-12-30
机构：首都经济贸易大学安全与环境工程学院北京100070
年：2006
期：S1
出版单位：安全与环境学报

摘要

不同装药结构爆破的地震效应存在较大差异,对于间隔装药结构而言,当采用的间隔介质相同时,采用什么样的间隔方式的降震效果更好呢?对此,就底部间隔、中部间隔还是顶部间隔装药方式的地震效应进行了比较研究。综合比较地震振动幅值、频率和振动持续时间等主要因素,3种间隔方式中,孔底间隔装药结构的爆破地震效应最小,其次为孔上部间隔,再次为孔中部间隔。
Study and practice show that different interval charge can produce the different blasting seismic effect.However,for the decked charge structure and the same decked medium,what kind of decked fashion can make damping seismic effect is better? The comparison between the different seismic effects caused by bottom,middle and top decked charge structures was investigated in the paper.The particle vibration velocity amplitude,vibration frequency and vibration duration have been compared.The damping seismic effect produced by bottom decked charge was best.Next is that of top decked charge.The damping seismic effect caused by middle decked charge was little.

引文

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