摘要
通过对岩石爆破机理的分析,认为岩石的最终破坏是由于爆炸产生的作用力超过其强度所致·进而分析了岩石的物理力学性质与岩石爆破的关系,重点阐述了岩石强度、孔隙度及密度对岩石爆破效果的影响,指出了在岩石爆破中起主要作用的是岩石的抗拉强度,阐明了岩石的空隙度越小、密度越大则越有利于岩石爆破,并探讨了水对岩石爆破效果的影响,指出水介质的存在有利于岩石的爆破·
Through analyzing mechanism of rock blasting,the rock blasting reason can be concluded that the action force of rock blasting generated is bigger than rock strength. The relationship of rock physical mechanica characteristics and rock blasting were examined. The influence of rock strength,density and porosity of on rock blasting were demonstrated. It is found that the tensile strength of rock plays a key role in rock blasting and that the smaller of rock porosity and the bigger of rock density are favorable to rock blasting. At the last,the influence of water on rock blasting was investigated and it is shown that water medium is favorable to rock blasting.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第7期696-698,共3页
Journal of Northeastern University(Natural Science)
基金
国家'十五'科技攻关项目(2001BA609A-10).
关键词
岩性因素
应力波
岩石爆破机理
空隙度
密度
rock character
stress wave
rock blasting mechanism
void fraction
density
