| 大采高工作面矿压显现与瓦斯涌出关系研究 |
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| 引用本文： | 毕建乙.大采高工作面矿压显现与瓦斯涌出关系研究[J].煤炭科技,2019(1):1-5. |
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| 作者姓名： | 毕建乙 |
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| 作者单位： | 山西西山晋兴能源有限责任公司斜沟煤矿 |
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| 基金项目： | 国家自然科学基金资助项目(51204088) |
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| 摘 要： | 根据现场实测斜沟煤矿18205工作面的液压支架支护阻力、超前支承压力及瓦斯浓度情况,分析研究大采高工作面矿压显现与瓦斯涌出的规律,结果证明:18205工作面矿压显现增大时,瓦斯浓度显著升高;在周期来压时煤岩体卸压增流,工作面瓦斯浓度明显升高。同时提出用高位裂隙带钻孔来治理邻近层瓦斯,发现在周期来压期间钻孔瓦斯抽采量明显增加,与来压步距基本一致,且高位裂隙带钻孔能有效拦截邻近层瓦斯,上隅角瓦斯浓度显著降低,有效保障了工作面安全回采。
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| 关 键 词： | 瓦斯涌出 周期来压 超前支承压力 采动裂隙场 矿压显现 采动应力 |
Research on Relationship between Strata Behavior and Gas Emission in Working Face with Large Mining Height |
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| BI Jian-yi.Research on Relationship between Strata Behavior and Gas Emission in Working Face with Large Mining Height[J].Coal Science & Technology Magazine,2019(1):1-5. |
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| Authors: | BI Jian-yi |
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| Affiliation: | (Xiegou Coal Mine,Shanxi Xishan Jinxing Coal Electricity Group Co.,Ltd.,Luliang,shanxi,033662) |
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| Abstract: | BI Jian-yi(Xiegou Coal Mine,Shanxi Xishan Jinxing Coal Electricity Group Co.,Ltd.,Luliang,shanxi,033662) |
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| Keywords: | gas emission periodic weighting ahead abutment pressure mining-induced fissures field strata behaviors mining-induced stress |
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