复杂条件下地下厂房岩壁吊车梁爆破开挖施工技术  

Blasting Excavation Technology of Underground Workshop′s Rock Anchor Crane Beam under Complex Conditions

作　　者：陈刚[1,2] 吴立[1] 左清军[1] 梁禹[3] 

机构地区：[1]中国地质大学工程学院,武汉430074 [2]葛洲坝集团第二工程有限公司,成都610091 [3]中南大学土木工程学院,长沙410000

出　　处：《爆破》2011年第4期43-46,共4页Blasting

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.

关 键 词：岩壁吊车梁 岩台开挖 复杂条件 保护层 

分 类 号：TD235.3[矿业工程—矿井建设]