矿区寒武系灰岩地下水集中径流带展布及机理分析
发布时间：2018-08-11 18:00
【摘要】：为查明平顶山煤田二矿和吴寨矿寒武系灰岩地下水集中径流带赋存情况,在探明矿区地质断层发育特征的基础上,采用井下连通试验研究了地下水集中径流带的展布及成因和控水作用。研究结果表明:二矿和吴寨矿寒武系灰岩地下水流速达3 320.05 m/d,含水层渗透系数达36 911.11 m/d,证明了地下水集中径流带的存在;二矿逆断层及两侧断层破碎裂隙带的存在,是影响寒武系灰岩含水层集中径流带空间展布的关键因素;集中径流带总体上控制着寒武系灰岩地下水由西南向东北流动、自浅向深的运移。寒武系灰岩地下水集中径流带展布特征的确定,为类似条件煤层底板水害的防治奠定了基础。
[Abstract]:In order to find out the occurrence of groundwater concentration runoff zone of Cambrian limestone in Pingdingshan Coalfield No.2 Mine and Wuzhai Mine, the geological fault development characteristics of mining area are proved. In this paper, the distribution, genesis and water control effect of groundwater concentrated runoff zone are studied by means of underground connection test. The results show that the velocity of groundwater in Cambrian limestone reaches 3 320.05 m / d, and the permeability coefficient of aquifer reaches 36 911.11 m / d, which proves the existence of concentrated runoff zone of groundwater, the existence of fracture zone of reverse fault and fault on both sides of No. 2 mine. It is a key factor to influence the spatial distribution of the concentrated runoff zone of the Cambrian limestone aquifer, which generally controls the movement of the Cambrian limestone groundwater from southwest to northeast and from shallow to deep. The determination of the distribution characteristics of groundwater concentrated runoff zone in Cambrian limestone has laid a foundation for the prevention and control of water damage in coal seam floor under similar conditions.
【作者单位】： 河南理工大学资源环境学院;中国平煤神马能源化工集团有限责任公司能源化工研究院;开封市通达公路勘察设计有限公司;华北水利水电大学资源与环境学院;平顶山天安煤业股份有限公司地测处;
【基金】：国家自然科学基金资助项目(41272250) 河南省高校科技创新团队支持计划资助项目(15IRTSTHN027)
【分类号】：TD745
本文编号：2177794
[Abstract]:In order to find out the occurrence of groundwater concentration runoff zone of Cambrian limestone in Pingdingshan Coalfield No.2 Mine and Wuzhai Mine, the geological fault development characteristics of mining area are proved. In this paper, the distribution, genesis and water control effect of groundwater concentrated runoff zone are studied by means of underground connection test. The results show that the velocity of groundwater in Cambrian limestone reaches 3 320.05 m / d, and the permeability coefficient of aquifer reaches 36 911.11 m / d, which proves the existence of concentrated runoff zone of groundwater, the existence of fracture zone of reverse fault and fault on both sides of No. 2 mine. It is a key factor to influence the spatial distribution of the concentrated runoff zone of the Cambrian limestone aquifer, which generally controls the movement of the Cambrian limestone groundwater from southwest to northeast and from shallow to deep. The determination of the distribution characteristics of groundwater concentrated runoff zone in Cambrian limestone has laid a foundation for the prevention and control of water damage in coal seam floor under similar conditions.
【作者单位】： 河南理工大学资源环境学院;中国平煤神马能源化工集团有限责任公司能源化工研究院;开封市通达公路勘察设计有限公司;华北水利水电大学资源与环境学院;平顶山天安煤业股份有限公司地测处;
【基金】：国家自然科学基金资助项目(41272250) 河南省高校科技创新团队支持计划资助项目(15IRTSTHN027)
【分类号】：TD745
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