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Vibration assessing model: comparison between methods

机译：振动评估模型：方法之间的比较

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The aim of blasting operations is rock fragmentation. It provides an appropriate rock material granulation or size that is suitable for loading and transportation. However, the blasting process and usage of explosives remain a potential source of numerous human and environmental hazards. The aim of this paper is, first of all, to provide models (and models comparison) concerning one of the major environmental issues related to blasting operations in mining and civil engineering projects: ground vibration propagation. The study displays an assessment of ground vibrations caused by blasting experiments at a whinstone quarry. The vibration source is the blasting of a fixed quantity of explosive burden (200 Kg of an Ammonium Nitrate Slurry Watergel - Tutagex 110, fragmented in 8 different parallel blast holes with a fixed 2 meter spacing). The primary goal of this study was to estimate the peak particle velocity (PPV) of the vibration, in order to protect the dwelling area adjacent to the quarry. Based on the data obtained from field measurements, a new equation was proposed: to achieve this objective we use geostatistical modelling, the branch of statistics that studies the phenomena that are developed on space-based, starting from the information derived from the sampling. The decision to describe the phenomenon with geostatistical modelling stems from having a limited number of samples and a vibration source difficult to repeat, which makes the geostatistics suitable for this purpose. In fact, it is often used to study phenomena characterized by a limited availability of samples. The final goal is the comparative analysis between the results obtained by the geostatistical equation and common empirical predictors currently used in blasting practice. The analysis of the comparison between these two approaches shows that the geostatistical tool seems to be suitable to the purposed scope.
机译：爆破作业的目的是碎石。它提供适合装载和运输的合适的岩石材料颗粒或尺寸。但是，爆炸过程和炸药的使用仍然是造成众多人身和环境危害的潜在来源。本文的目的首先是提供与采矿和土木工程项目中爆破作业有关的主要环境问题之一的模型（和模型比较）：地面振动传播。该研究显示了对磨石采石场爆破实验引起的地面振动的评估。振动源是固定量炸药的爆炸（200千克硝酸铵浆状水凝胶-Tutagex 110，分成8个不同的平行爆破孔，间距固定为2米）。这项研究的主要目的是估计振动的峰值速度（PPV），以保护靠近采石场的居住区。根据从野外测量获得的数据，提出了一个新的方程式：为了实现这一目标，我们使用了地统计学模型，这是统计的分支，它从采样获得的信息开始研究基于空间的现象。用地统计学建模描述现象的决定源于样本数量有限且振动源难以重复，这使得地统计学适用于此目的。实际上，它通常用于研究以有限的样本可用性为特征的现象。最终目标是对地统计方程所获得的结果与目前在爆破实践中使用的常见经验预测因子之间进行比较分析。对这两种方法的比较分析表明，地统计工具似乎适合于目标范围。

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