条形不偶合平面药包硐室爆破在路基开挖中的应用APPLICATION OF CHAMBER BLASTING WITH DECOUPLING LINEAR PLANE CHARGES IN ROADBED DIGGING
孙国勋
Sun Guoxun (Yellow River Conservancy Commisson;
摘要(Abstract)：
在路基开挖中采用条形药包硐室爆破，通过对条形不偶合平面药包作用机理的分析，指出条形不偶合装药能减小爆破振动对后边坡和路基的破坏影响，因而可减小药包设计的保护层计算厚度；通过对条形药包和集中药包应用特点的比较，提出了沿路基线型尽可能布设条形药包或准条形药包以及辅助集中药包等不同的处理方法。在较高边坡开挖中布置小抵抗线条形平面药包，减小了爆破振动，提高了有效抛掷率，保证了高边坡的平整和稳定，经济效益显著。
The chamber blasting with linear charges is used in roadbed digging.Though analysis on action mechanism of decoupling linear plane charge,this author pointed out that decoupling linear plane charge could fully abate the destructive influence blasting vibration on back side slope and roadbed,and then reduce the protective layer's thickness of the change,by contrasting the applied characteristics with linear charge and centralized charge,the author put forward the plan of laying linear charge as closely as possible along the curve of the roadbed:during the excavation work of higher side slope,by arranging burden liner plane charge the destruction from blasting vibration is reduced;the effective throw rate is increased;the leveling and stability of high slope guaranteed,and the remarkable economical benefit obtained.
关键词(KeyWords)：
条形药包,平面药包,不偶合装药,硐室爆破,路基开挖
Linear charge Plane charge\ \ Decoupling charging\ \ Chamber blasting Roadbed digging
基金项目(Foundation):
作者(Authors):
孙国勋
Sun Guoxun (Yellow River Conservancy Commisson;