| 复杂条件下大水工作面的综合水害防治技术应用 |
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| 作者姓名： | 张亚南 |
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| 作者单位： | 开滦集团钱家营矿业分公司 |
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| 摘 要： | 1358西工作面是开滦钱家营矿业分公司首个倾向开采工作面,下伏7煤层工作面已经回采完毕,受下伏煤层采动、5煤层顶板含水层以及倾向开采三重因素作用,1358西回采工作面水文地质条件较复杂,水害治理难度较大。根据以往钱家营矿防治水经验和工作面实际水文地质条件,通过超前疏放5煤层顶板含水层水及合理设计防排水工程,1358西回采过程中未出现任何水害事故,保证了矿井安全生产,为今后煤层倾向开采防治水工作积累了宝贵经验。
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| 关 键 词： | 强含水层 倾向开采 采动破坏 疏水降压 大水工作面 |
Application of integrated water damage control technologyfor large water working face under complex conditions |
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| Authors: | Zhang Yanan |
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| Affiliation: | (Kailuan Group Qianjiaying Mining Branch,Tangshan 063301,China) |
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| Abstract: | 1358 West working face is the first inclined mining face of Kailuan Qianjiaying Mining Branch,and the lower No.7 coal seam has been mined out.The hydrological and geological conditions of 1358 West back mining face are complicated due to the influence of mining of the lower coal seam,the water-bearing layer on the roof of No.5 coal seam and the inclined mining.According to the past experience of water control in Qianjiaying Mine and the actual hydrogeological conditions of the working face,through the over-emission of water from the top plate of the coal seam and the reasonable design of drainage prevention engineering,no water damage accident occurred during 1358 West back mining,which ensured the safe production of the mine and accumulated valuable experience for the future water control work of inclined coal seam mining. |
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| Keywords: | strong water-bearing seam tendency mining mining damage hydrophobic pressure reduction large water working face |
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