基于煤层顶板抽水试验的含水层水力联系研究
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摘要
为给曹家滩井田2~(-2)煤层先期开采地段提供技术保障,在分析矿井各含(隔)水层水文地质特征的基础上,结合地面抽水试验结果,对2~(-2)煤层上覆含水层的水力联系进行综合评价。研究结果表明:矿井主要充水含水层为直罗组、延安组和风化基岩含水层,其中风化基岩段存在一定厚度的强富水层;萨拉乌苏组与风化基岩含水层不存在水力联系,证实了保德组红土在井田内有良好的隔水效果,直罗组与风化基岩含水层具有一定的水力联系,延安组与直罗组含水层一般不存在水力联系或相互补给有限。
In order to provide technical support for the pre-mining section of 2~(-2) coal seam in Caojiatan Coal Mine,based on the analysis of hydrogeological characteristics of each aquifer and aquifuge,combined with the results of ground pumping test,this paper comprehensively evaluated the hydraulic connection of the overlaying aquifer of 2~(-2) coal seam. The results show that the main water-filled aquifers in the mine are Zhiluo Formation,Yan'an Formation and the weathered bedrock aquifer,and the weathered bedrock section has a strong water-rich layer with a certain thickness; there is no hydraulic connection between the Sarawusu Formation and the weathered bedrock aquifer,which confirms that the red soil of the Baode Formation has good water-blocking effect in the minefield,the Zhiluo Formation aquifer has a certain hydraulic connection with the weathered bedrock aquifer,the Yan'an Formation aquifer and the Zhiluo Formation aquifer generally have no hydraulic connection or have limited mutual replenishment.
In order to provide technical support for the pre-mining section of 2~(-2) coal seam in Caojiatan Coal Mine,based on the analysis of hydrogeological characteristics of each aquifer and aquifuge,combined with the results of ground pumping test,this paper comprehensively evaluated the hydraulic connection of the overlaying aquifer of 2~(-2) coal seam. The results show that the main water-filled aquifers in the mine are Zhiluo Formation,Yan'an Formation and the weathered bedrock aquifer,and the weathered bedrock section has a strong water-rich layer with a certain thickness; there is no hydraulic connection between the Sarawusu Formation and the weathered bedrock aquifer,which confirms that the red soil of the Baode Formation has good water-blocking effect in the minefield,the Zhiluo Formation aquifer has a certain hydraulic connection with the weathered bedrock aquifer,the Yan'an Formation aquifer and the Zhiluo Formation aquifer generally have no hydraulic connection or have limited mutual replenishment.
引文
[1]董书宁.对中国煤矿水害频发的几个关键科学问题的探讨[J].煤炭学报,2010,35(1):66-71.
[2]武强,崔芳鹏,赵苏启,等.矿井水害类型划分及主要特征分析[J].煤炭学报,2013,38(4):561-565.
[3]曾建平.宁夏红墩子矿区红二井田水文地质分析及水害预防[J].矿业安全与环保,2012,39(5):60-62.
[4]李志伟,陈德明,梁向阳,等.门克庆井田水文地质条件对矿井开采顺序的影响[J].煤田地质与勘探,2018,46(2):124-129.
[5]张立其,刘洋,方刚.陕北浅埋煤层采空区积水下安全开采技术研究[J].煤田地质与勘探,2015,43(6):60-64.
[6]周瑞,耿杰,李俊杰.太原西山煤田杨庄井田煤层突水危险性分析[J].中国煤炭,2018,44(3):127-131.
[7]吴铁卫,刘士君,张冀,等.鹤岗矿区新陆煤矿主要含水层之间水力联系分析[J].中国煤炭地质,2016,28(1):44-47.
[8]赵宝峰,马莲净.基于多含水层放水试验的顶板水可疏降性评价[J].煤炭工程,2018,50(3):71-74.
[9]方俊,张杰.定向长钻孔超前疏放顶板水技术在枣泉煤矿的应用[J].煤炭工程,2016,48(7):56-59.
[10]杨建,赵彩凤.基于工作面顶板疏放水的含水层水力联系研究[J].矿业安全与环保,2015,42(5):84-86.
[11]刘国旺,常浩宇,郭均中.唐山矿塌陷区积水与矿井潜在水力联系研究[J].煤炭科学技术,2017,45(8):223-227.
[12]翟晓荣,沈书豪,张海潮,等.基于MODFLOW的含水层间水力联系分析研究[J].水文地质工程地质,2015,42(6):8-11.
[13]李全胜.古交矿区峰峰组与上马家沟组水力联系及意义[J].山西焦煤科技,2017(6):35-39.
[14]鲁建国,李飞帆,张新国,等.深部厚冲积层下综放开采导水裂隙带高度实测[J].中国煤炭,2017,43(11):60-63.
[15]张国奇,吕晓磊,李东发,等.半固结砂岩含水层下综放开采“两带”高度实测研究[J].煤炭科学技术,2017,45(1):183-185.
[2]武强,崔芳鹏,赵苏启,等.矿井水害类型划分及主要特征分析[J].煤炭学报,2013,38(4):561-565.
[3]曾建平.宁夏红墩子矿区红二井田水文地质分析及水害预防[J].矿业安全与环保,2012,39(5):60-62.
[4]李志伟,陈德明,梁向阳,等.门克庆井田水文地质条件对矿井开采顺序的影响[J].煤田地质与勘探,2018,46(2):124-129.
[5]张立其,刘洋,方刚.陕北浅埋煤层采空区积水下安全开采技术研究[J].煤田地质与勘探,2015,43(6):60-64.
[6]周瑞,耿杰,李俊杰.太原西山煤田杨庄井田煤层突水危险性分析[J].中国煤炭,2018,44(3):127-131.
[7]吴铁卫,刘士君,张冀,等.鹤岗矿区新陆煤矿主要含水层之间水力联系分析[J].中国煤炭地质,2016,28(1):44-47.
[8]赵宝峰,马莲净.基于多含水层放水试验的顶板水可疏降性评价[J].煤炭工程,2018,50(3):71-74.
[9]方俊,张杰.定向长钻孔超前疏放顶板水技术在枣泉煤矿的应用[J].煤炭工程,2016,48(7):56-59.
[10]杨建,赵彩凤.基于工作面顶板疏放水的含水层水力联系研究[J].矿业安全与环保,2015,42(5):84-86.
[11]刘国旺,常浩宇,郭均中.唐山矿塌陷区积水与矿井潜在水力联系研究[J].煤炭科学技术,2017,45(8):223-227.
[12]翟晓荣,沈书豪,张海潮,等.基于MODFLOW的含水层间水力联系分析研究[J].水文地质工程地质,2015,42(6):8-11.
[13]李全胜.古交矿区峰峰组与上马家沟组水力联系及意义[J].山西焦煤科技,2017(6):35-39.
[14]鲁建国,李飞帆,张新国,等.深部厚冲积层下综放开采导水裂隙带高度实测[J].中国煤炭,2017,43(11):60-63.
[15]张国奇,吕晓磊,李东发,等.半固结砂岩含水层下综放开采“两带”高度实测研究[J].煤炭科学技术,2017,45(1):183-185.