| 特厚煤层综放开采冲击地压防治技术与实践 |
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| 引用本文： | 周澎.特厚煤层综放开采冲击地压防治技术与实践[J].煤炭科学技术,2011,39(4):35-39. |
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| 作者姓名： | 周澎 |
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| 作者单位： | 华亭煤业集团有限责任公司,华亭煤矿,甘肃,华亭,744100 |
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| 摘 要： | 基于华亭煤矿250102综放工作面冲击地压显现强烈、巷道返修难度大,开展了一系列技术研究和防治实践。分析表明,大采深、煤层具有冲击倾向性、坚硬厚层砂岩顶板、护巷煤柱留宽不合理是导致该工作面发生冲击地压的主要因素,并采用综合指数法判定该综放面冲击危险指数0.89,具有强冲击地压危险性。在早期预测的基础上,采用微震法对冲击危险区域进行监测。对具备冲击危险的区域,综合采用巷帮煤体卸压爆破、顶板深孔爆破、动压注水(8~13 MPa)与静压注水等卸压解危措施,削弱了冲击地压显现强度,有效降低了综放工作面冲击地压的发生。
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| 关 键 词： | 特厚煤层 综放开采 区段煤柱 冲击地压 综合指数法 |
Technology and Practices on Mine Pressure Bumping Prevention and Control of Fully Mechanized Top Coal Caving Mining in Ultra Thick Seam |
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| ZHOU Peng.Technology and Practices on Mine Pressure Bumping Prevention and Control of Fully Mechanized Top Coal Caving Mining in Ultra Thick Seam[J].Coal Science and Technology,2011,39(4):35-39. |
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| Authors: | ZHOU Peng |
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| Affiliation: | ZHOU Peng(Huating Mine,Huating Coal Mining Group Corporation Ltd.,Huating 744100,China) |
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| Abstract: | According to the serious mine pressure bumping,gateway repair difficulty and other production problems of No.250102 fully mechanized top coal caving mining face in Huating Mine,a series technical research and the prevention and control practices was conducted.The analysis showed that the deep mining depth,seam with pressure bumping tendency,hard and thick sandstone roof and irrational width of the gateway coal pillars would be main influence factors to cause the pressure bumping in the coal mining face.The ... |
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| Keywords: | ultra thick seam fully mechanized top coal caving mining sectional coal pillar mine pressure bumping comprehensive index method |
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