岩体爆破裂纹扩展速度实验研究  

An Experimental Study of Crack Expansion Speed in Rock Blasting

作　　者：张志呈[1] 

机构地区：[1]西南工学院,四川621002

出　　处：《爆破器材》2000年第3期1-8,共8页Explosive Materials

基　　金：四川省科委资助项目

摘　　要：爆破过程中 ,介质的破裂是由裂纹发展的过程决定的。因此 ,研究裂纹扩展规律必须研究扩展速度 ,对探讨岩石断裂控制爆破机理 ,具有重要意义。文章介绍了岩石的断裂现象、裂纹扩展速度的变化过程。In the rock blasting,the rupture of the medium is dependent on the progress of crack expansion. Therefore,the study of the rupture expansion speed is very important for the study of rupture expansion mechanism and it is of great significance in the controlled blasting of rock. The rupture phenomenon of rock, the transfomation of rupture expansion speed and the theoretical calculation of expansion speed are here given. The test data and the influence factors are also discussed in details. [

关 键 词：断裂控制 扩展规律 岩体 爆破 裂纹扩展 

分 类 号：TD235.46[矿业工程—矿井建设] TD235.371