柱状装药爆破应力分布的研究  

Distribution of stress caused by column charge blasting

作　　者：穆朝民[1,2,3,4] 齐娟[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001 [3]中国科学技术大学近代力学系,合肥230026 [4]总参工程兵科研三所,河南洛阳471023

出　　处：《振动与冲击》2010年第10期91-94,共4页Journal of Vibration and Shock

基　　金：国家自然基金(50874005);国家自然科学基金(10402041;10572134);教育部博士点基金20070358073

摘　　要：根据岩石爆破特征,利用柱状空腔膨胀理论对爆破产生的弹塑性区的应力分布进行了研究,给出了弹塑性区内应力分布的解析表达式。借助于爆炸力学近似计算公式,验证了应力在弹塑性区的分布,理论计算结果表明,理论计算值与近似计算基本一致。Applying the theory of cylindrical cavity expansion,the characteristics of distribution of stress in elastic-plastic zones were studied according to behavior of blasting-induced deformation of rock.The expression of stress distribution was presented.The stress distribution was validated by the theory of classical explosion mechanics.The results of theoretical calculation kept good consistence with those given by traditional mechanics.

关 键 词：爆炸力学 应力分布 柱状装药 空腔膨胀 

分 类 号：O383.1[理学—流体力学]