摘要
为了研究不同距离裂隙对爆炸裂纹扩展的影响规律,以有机玻璃为试验介质,分别研究了裂隙距炮孔距离l=20、30、40、50、60 mm时,爆炸空腔、径向裂纹、层裂裂纹、翼形裂纹的形成及扩展规律。研究结果可为优化裂隙岩体的爆破参数提供参考。
In order to study the effect of different distance fracture on blasting cracks propagation, organic glasses were used for experimental medium. When the distance l that fracture to blasthole was 20, 30, 40, 50, 60 mm, the explosive cavities, radial cracks, spalling cracks and wing cracks were respectively studied for cracks formation and their propagation rules. The results can provide reference for optimizing the blasting parameters of fractured rock mass.
出处
《煤炭技术》
CAS
北大核心
2016年第10期106-108,共3页
Coal Technology
基金
西南科技大学研究生创新基金资助项目(15ycx033)
关键词
原生裂隙
相对距离
裂纹扩展
preexisting fracture
relative distance
crack propagation
