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The effect of the number of holes on blast-induced ground vibrations

机译：孔数对爆炸引起的地面振动的影响

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This study investigated the effect of the number of holes on blast-induced ground vibrations in open-pit blasting operations. The study was conducted at an overburden removal site at the Garp Lignite Enterprise open pits. The number of holes used in the blasts throughout the study was grouped as 10-50, 51-100, 101-150, and 151-250 holes and each group was analyzed separately. The same hole pattern and non-electric delay detonators were used in all blasts, and each hole was loaded with an equal amount of explosive. In the study, seismographs were used to measure ground vibrations. A separate analysis was carried out for each hole group in addition to an overall analysis encompassing all the measurement data. In statistical analysis, Scaled Distance-Peak Particle Velocity graphs were plotted, equations and coefficients of determination were computed, and finally, a comparison was made. In conclusion, the study results showed that the number of holes did not affect blast-induced ground vibration level.
机译：这项研究调查了露天爆破作业中孔数对爆炸引起的地面振动的影响。该研究是在Garp褐煤企业露天矿的覆盖层去除现场进行的。在整个研究中，爆炸中使用的孔数分为10-50、51-100、101-150和151-250，每个组分别进行分析。在所有爆炸中都使用相同的孔型和非电延迟雷管，并且每个孔都装有等量的炸药。在这项研究中，地震仪用于测量地面振动。除了包含所有测量数据的整体分析之外，还对每个孔组进行了单独的分析。在统计分析中，绘制了标度距离峰粒子速度图，计算了方程和确定系数，最后进行了比较。总之，研究结果表明，孔的数量不影响爆破引起的地面振动水平。

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