合理的开挖程序和轮廓爆破方式是深埋地下厂房施工中的关键技术之一。
A reasonable excavation procedure and contour blasting method is one of the key techniques for construction of deep underground powerhouse.
高速公路路堑爆破开挖工程具有开挖高度变化大、开挖断面小、开挖轮廓要求严、特别是边坡质量要求高等特点。
Cutting excavation blasting in expressway construction is characterized by a wide range of excavation height, small excavation section and high quality requirements.
在隧道爆破开挖中，频繁反复的爆破冲击动压力对隧道设计轮廓线、施工误差和围岩的稳定性等有很大影响。
The impulsive dynamical pressure from frequent blasting has a strong influence on designed tunnel contour, construction error and stability of surrounding rock in the course of excavating tunnel.
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