Magnitude Extreme Distribution of Mining Tremor
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摘要: 結合前人的研究成果,推導了礦山地震震級極值的岡貝爾Ⅰ型分布,給出了其參數確定方法.在簡要介紹老虎臺礦礦山地震活動的構造及物理背景后,將震級極值分布應用于老虎臺礦月最大震級的概率預測實踐結果表明,用這種方法預測的月最大震級概率分布與實際記錄的礦震月最大震級分布一致.Abstract: Based on the other reseachers' work, the Gumbel Ⅰ distribution of mining tremors' extreme magnitude is derivated.The determination method of the distribution parameters is also developed. After bri-efly introducing the tectonic structure and physical background of mining tremors in Laohutai coal mine, the magnitade extreme distribution is applied to the practice of probabilistic prediction of monthly largest magni-tudes at the Laohutai coal mine.The result shows that the predicted probability distribution of monthly largest magnitudes consists well with the distribution of practical record of monthly largest magnitudes.
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Key words:
- mining tremor /
- extreme distribution /
- Laohutai coal mine /
- magnitude prediction
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