摘要
在锦屏二级水电站地下厂房岩壁吊车梁爆破开挖施工过程中,针对地质条件较差、裂隙发育等特点,通过反复的开挖爆破试验优化爆破参数,并在施工中预留保护层、控制钻孔精度、优化装药结构,获得了良好的岩台成型质量。
In the blasting excavation of underground workshop＇s rock anchor crane beam for Jinping secondary hydropower station, blasting parameters were optimized through repeating blasting excavation test according to the characteristics of poor geological condition and abundant fissure. Moreover, protective layer was reserved, drilling accuracy was controlled and charging constitution was optimized in the blasting construction. The quality of rock bench forming has been acquired.
出处
《爆破》
CSCD
北大核心
2011年第4期43-46,共4页
Blasting
关键词
岩壁吊车梁
岩台开挖
复杂条件
保护层
rock anchor crane beam
rock excavation
complex condition
protective layer
