水孔预裂爆破的损伤断裂成缝机理研究  

Study on Pre-splitting Blasting Cracking Mechanism aboutDamage-Fracture with Water in the Hole

作　　者：朱志武[1] 李义[1] 

机构地区：[1]太原理工大学矿业工程学院,山西太原030024

出　　处：《太原理工大学学报》2003年第3期297-300,共4页Journal of Taiyuan University of Technology

摘　　要：进行了水孔预裂爆破成缝机理的理论和实验研究 ,建立了水孔预裂爆破裂纹的起裂、扩展和止裂判据 ,并从理论和实验两个方面证明了水孔预裂爆破的优越性。The mechanism of cracking by pre splitting blasting with water in hole by means of experimental and analytic method is studied.It establishes the reference of beginning, widening and ceasing of crack caused by pre splitting blasting with water. Via lab experiment and theoritic analysis the advantage of the method has been proved.

关 键 词：水孔预裂爆破 成缝机理 损伤断裂 裂纹扩展 爆破工程 

分 类 号：TD235[矿业工程—矿井建设]