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本文提出了一侧抛掷和另一侧松动的抛松控制爆破的物理概念、抛松两侧控制范围和抛松控制爆破的基本原理。 通过实验观察和分析,得出抛松两侧最小抵抗线的合理抛松比K_(ps)、抛掷侧爆破作用指数n_p和松动侧爆破作用指数n_s的计算方法及控制条件。 为了保护松动侧的各种建筑物、构筑物和工业设施等,专门设计了防止空气冲击波的防冲屏、降低爆破地震波作用的防震沟以及阻拦滚石的拦石壩。经实践检验和测定,证明这些屏、沟、壩是切实可行的对松动侧的有效保护措施。
In this paper, we put forward the physical concept of throwing controlled blasting on one side and loosening on the other side, the control principle of loose loosening and the basic principle of loose loosening controlled blasting. Through the experimental observation and analysis, the calculation method and control conditions of reasonable reject ratio K ps, throwing side blasting index n_p and loose side blasting index n_s are obtained. In order to protect a variety of buildings, structures and industrial facilities on the loose side, we specially designed anti-shock screens to prevent air shock wave, anti-vibration trenches to reduce blasting seismic wave, and barrage dam to prevent rolling stones. The practice of testing and testing proved that these screens, ditches and dams are feasible and effective measures for the loose side.