条形药包爆破震动场的试验研究

通过时条形药包周围实测爆破震动数据采用数值计算方法进行处理，作出了条形药包周围的爆破震动场，使我们对条形药包的爆破地震效应有了全面的认识，从而在实际工程爆破中能够有针对性地进行安全防护。分析研究认为：条形药包周围的震动场由一系列同心椭圆形等震线组成。在爆破近区由于位置因素的影响，等震线的长轴与药包轴线重合；在远区的震动主要受波动干涉作用的影响，致使长轴与药包轴线垂直，因此不能采用集中药包的计算方法。

STUDY ON BLASTING VIBRATION FIELD OF LONG-LENGTH CARTRIDGE

By processing the blasting vibration data actually measured around the long-length cartridge with the numerical calculation,the blasting vibration field was developed,making people having an overall view on the blasting vibration effect,so as to carry out safety protection in accordance with the actual condition of engineering blasting.It is believed from the analysis that,the vibration field around the long-length cartridge is composed of a series of vibration lines of concentric ellipse.Close to the cartridge,effected by the location factor,the major axis of the contour vibration lines is coincided with the axis of the cartridge,far away from it,the vibration is mainly influenced by the wave interference,the major axis is vertical to the axis of cartridge.Therefore,the calculation of the concentrated cartridge can not be used.