摘要
本文提出了光面爆破和预裂爆破的断裂力学模型,分析了应力波、爆生气体准静态压力在爆破破裂过程中的作用。通过有限元计算,研究了光面爆破和预裂爆破的断裂特征,阐述了光面爆破和预裂爆破的破裂机理。
This paper presents a fracture mechanics model of smooth blasting and pre-split blast-ing, analyzes the function of stress waves and quasi-static pressure of explosion in blasting process. By means of finite element calculation the fracture features of smooth blasting and pre-split blasting have been studied, and their fracture mechanism has been expounded.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1990年第4期79-87,共9页
Journal of China University of Mining & Technology
关键词
光面爆破
预裂爆破
破裂机理
爆破
smooth blasting, pre-split blasting, propagation of cracks, stress intensityfactor