| 夹矸对放顶煤开采的影响 |
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| 引用本文： | 武虎彪 宋选民. 夹矸对放顶煤开采的影响[J]. 山西矿业学院学报, 1996, 14(3): 191-195 |
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| 作者姓名： | 武虎彪 宋选民 |
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| 作者单位： | 太原煤科分院(武虎彪)，山西矿业学院(宋选民) |
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| 摘 要： | 厚煤层存在夹矸层是较为普遍的现象，而夹矸层对顶煤冒放性的影响则是研究顶煤冒放性问题的一个重要方面。今根据煤层中夹矸层赋存特征（层位、层数、厚度）和岩石力学性质（岩性、强度），详细分析了夹矸特性对顶煤冒放性的影响。在此基础上，结合放顶煤开采的要求，提出了夹矸层的临界厚度参数值范围。
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| 关 键 词： | 夹矸；冒放性；临界厚度 |
The study of impact of dirt band on top coal drawing mining |
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| Wu Hubiao Song Xuanmin. The study of impact of dirt band on top coal drawing mining[J]. , 1996, 14(3): 191-195 |
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| Authors: | Wu Hubiao Song Xuanmin |
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| Abstract: | The dirt band existed in high coal seam is comparatively popular phenominon, but the effect of dirt band on top coal caving and drawing properties is an important research field of studying top coal caving and drawing problems. According to the deposit characteristics of dirt band in coal seam (the position, layers and thickness of dirt band), and its surrounding rock mechanics features (rock nature, strength), the paper analyses in details the impact of dirt band nature on top coal caving and drawing properties. And on the basis of above mentioned analysis, combined with the requirement of top coal drawing mining, the paper puts forword critical thickness parameters of dirt band. |
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| Keywords: | dirt band caving and drawing property critical thickress |
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