摘要
边坡开挖爆破必然造成边坡岩体的损伤。通过受损边坡岩体取样岩芯裂隙的统计分析、声波速度测试、岩芯切片微观结构的电镜观察及岩芯的强度试验,发现光面爆破对边坡岩体的损伤程度与爆破规模无明显关系,而与光爆孔的线装药密度有关,损伤区岩石的强度明显降低。
The blasting of slope excavation results in the damage of rock mass consequentially. Through the statistic and analysis of rock core crack, sonic wave velocity test, microcosmic structure of core slice observation by electron microscope, core strength test to the sampled damaged slope rock mass, it indicates that the damage degree of smooth blasting to slope rock mass has no obvious relation with blasting scale but with the line density of explosive filling and the strength of the rock in damaged area decreases evidently.
出处
《矿业研究与开发》
CAS
北大核心
2005年第5期68-70,79,共4页
Mining Research and Development
基金
四川省绵阳市科技局资助项目([1999]16号)
关键词
光面爆破
边坡开挖
岩体损伤
声波测试
微观分析
Smooth blasting, Slope excavation, Damnification of rock mass, Sonic wave detection, Microcosmic analysis
