Procedural framework for explosion classification by the seismic load criterion
Procedural framework for explosion classification by the seismic load criterion
复制标题
按地震荷载准则进行爆炸分类的程序框架
DOI：
10.17580/gzh.2021.05.13
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
A. Eremenko
中科院分区：
文献类型：
--
作者：
A. Kholodilov;A. Gospodarikov;A. Eremenko
首次建立了爆破作业作为爆破震动来源的定量分类。根据分类，将所有震源分为增量源、正常震源和减量震源。这种分类是基于PPV衰减因子与地震活动性系数的对数的直线关系，这些系数被包含在Sadovsky预测爆炸地震作用下的峰值质点速度的公式中。该分类基于对76个地震活动性系数-PPV衰减系数组合的统计分析，这些系数组合反映了固体矿产开采和土木工程中进行的爆破作业的广泛地理范围。利用Fisher准则和学生统计量验证了统计分析结果的可靠性。对震源分类边界进行了验证。从含水岩石和极坚硬岩石中的爆破条件、大直径炮孔的使用、同时爆破炸药质量的选择以及起爆方法对地震效果的影响等方面比较了地震活动性增加的来源。从地下矿山爆破条件、地面记录建材采石场爆破条件、民用建筑爆破条件、预留钻孔开槽条件等方面，比较了正常地震活动和减震地震活动的来源。这种分类方法可以用地震活动性系数和PPV衰减系数对爆破作业进行定量比较，在6~2700和0.6~2.8之间，PPV的单位为厘米/S，代表了当今世界爆破技术的水平。
For the first time the quantitative classification of blasting operations as sources of blasting vibrations is constructed. According to the classification, all sources are divided into the sources of increased, normal and reduced action. The classification is based on the rectilinear dependences of the PPV attenuation factor on the logarithm of the seismicity coefficient, which are included in Sadovsky’s formula to predict the peak particle velocity under the seismic action of explosions. The classification is based on the statistical analysis of 76 seismicity coefficient—PPV attenuation factor couples reflective of the wide geography of blasting operations carried out in solid minerals mining and in civil engineering. The reliability of the statistical analysis result is proved using the Fisher criterion and Student statistics. The classification boundaries of seismic sources are verified. The sources of increased seismic activity are compared by the conditions of blasting in watered and in very strong rocks, the use of largediameter blast holes, the choice of explosive mass for simultaneous blasting and the influence of the initiation method on the seismic effect produced. The sources of normal and reduced seismic activity were compared by the conditions of blasting in underground mines, at quarries of building materials with ground surface recording, blasting in civil construction and with preliminary borehole slotting. The classification allows the quantitative comparison of blasting operations by the level of seismic action in the intervals of 6–2700 and 0.6–2.8 by the seismicity coefficient and PPV attenuation factor, respectively, for PPV in cm/s. The classification is representative of the current technology of blasting in the world practice.