| 极软厚煤层煤壁片帮与防治机理 |
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| 引用本文： | 王家臣.极软厚煤层煤壁片帮与防治机理[J].煤炭学报,2007,32(8):785-788. |
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| 作者姓名： | 王家臣 |
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| 作者单位： | 中国矿业大学（北京） 煤炭资源与安全开采国家重点实验室，北京，100083 |
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| 基金项目： | 教育部高等学校优秀青年教师教学科研奖励计划 |
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| 摘 要： | 详细分析了极软煤层煤壁片帮与防治机理，提出了减缓煤壁压力和提高煤体抗剪强度是防治极软煤层煤壁片帮的主要技术途径.研究表明：放顶煤开采、提高支架工作阻力可以减缓煤壁压力，煤体合理注水可以提高煤体黏聚力与抗剪强度，它们是防治极软煤层煤壁片帮的有效措施.加快工作面推进度、适当降低采高也有利于防治煤壁片帮.
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| 关 键 词： | 极软厚煤层 煤壁片帮 放顶煤 煤层注水 支架工作阻力 |
| 文章编号： | 0253-9993（2007）08-0785-04 |
| 收稿时间： | 2006-10-25 |
| 修稿时间： | 2006-10-25 |
Mechanism of the rib spalling and the controlling in the very soft coal seam |
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| WANG Jia-chen.Mechanism of the rib spalling and the controlling in the very soft coal seam[J].Journal of China Coal Society,2007,32(8):785-788. |
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| Authors: | WANG Jia-chen |
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| Affiliation: | Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology ( Beijing |
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| Abstract: | Studied the mechanism of the rib spalling and controlling in detail,and proposed that main engineering way of controlling the rib spalling was to decrease coal wall pressure and increase the shear strength of the coal wall.The following research results are obtained: the top coal caving technique and increasing the resistance of the support can reduce the pressure on the coal wall.The cohesion and shear strength of the coal wall may be increased by means of the coal wall water infusion.They are effective engineering ways to prevent the rib spalling.The quickly coal wall advance and proper low wall height are also advantageous to the wall stability. |
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| Keywords: | very soft coal seam rib spalling top coal caving coal seam water infusion support resistance |
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