摘要
根据岩石爆破特征,对中深孔欲裂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 are studied according to behavior of blasting - induced deformation of rock. The distribution of stress expression of theory is presented. The stress value is validated by the theory of classical explosion mechanics. The results of theoretical calculation analysis keep good consistence with that given by traditional mechanics.
出处
《煤炭技术》
CAS
北大核心
2010年第1期216-218,共3页
Coal Technology
关键词
爆炸力学
岩石力学
欲裂爆破
柱装药
mechanics of explosion
rook mechanics
deep hole broking
column charge
