CN102691522B - 一种工作面突出危险动态预测图形成方法 - Google Patents
一种工作面突出危险动态预测图形成方法 Download PDFInfo
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Abstract
Description
指标类别 | 指标符号 | 获取方法 |
煤层厚度及变化率 | μh | 地勘钻孔分析及井下观测 |
软分层厚度 | hr | 地勘钻孔分析及井下观测 |
断层影响范围 | Ld | 地勘钻孔分析及井下观测 |
陷落柱影响范围 | Lx | 地勘钻孔分析及井下观测 |
火成岩倾入范围 | Lh | 地勘钻孔分析及井下观测 |
夹矸尖灭处 | Lg | 地勘钻孔分析及井下观测 |
围岩性质及厚度 | hw | 地勘钻孔分析及井下观测 |
煤的坚固性系数 | f | 井下取样,实验室测定 |
以断层区域做缓冲区 | 10 | 15 | 20 | 30 | 50 |
危险等级变化值 | +50 | +40 | +30 | +20 | +10 |
以陷落柱做缓冲区 | 0 | 5 | 10 | 20 | 30 |
危险等级变化值 | +50 | +40 | +30 | +20 | +10 |
以火成岩侵入区做缓冲区 | 0 | 5 | 10 | 20 | 30 |
危险等级变化值 | +50 | +40 | +30 | +20 | +10 |
以火成岩侵入区做缓冲区 | 0 | 5 | 10 | 20 | 30 |
危险等级变化值 | +50 | +40 | +30 | +20 | +10 |
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CN102691522A CN102691522A (zh) | 2012-09-26 |
CN102691522B true CN102691522B (zh) | 2014-11-12 |
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Cited By (1)
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RU2781586C1 (ru) * | 2021-10-22 | 2022-10-14 | Федеральное Государственное Бюджетное Учреждение Науки Институт Проблем Комплексного Освоения Недр Им. Академика Н.В. Мельникова Российской Академии Наук (Ипкон Ран) | Способ управления метановыделением на выемочном участке газообильной шахты |
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