school of Resources and Environment, Henan Polytechnic University China Pingmei Shenma Group Research Ilnstitute Kaifeng Tongda Highway Survey and Design Company Limited School of Resources and Environment,North China University of Water Resources and Electric Power Division of Geological survey,Pingdingshan Tian'an Coal Industry Company Limited

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。

in order to ascerain the depotion condition of the concentrated runof zone in the Canmbrian limestone underground water in No.2 Mine and Wzhai Mine of ingdingshan Ccafield based on the geogical aut development features of the proved mining area.the underground conmection test was applied to study the distribution and causes of the underground water concentrated runoffzone and the water control ole. The stidy resuts showed that the fiow velocity of Cambria limestone underground water in No.2 Mine and Wzhai Mine was3 320.05 n d,the permeailityco ficient of the aquifer was 36 911.11 mid and the ccurence of the underground waerconcentrated unof zone was proved.The occurences of the reverse fault and the broken crack zone in No.2 Mine would be the key factor affected to the space distibuion of the concentrated runof zone in the Cambrian limestone underground water.The concentrated runof zone geneall controlled the movement of theCambrian limestone underground water from the south-west to north-east and from a shallw to deep.The determination on the disribuionfeatues of the concentratedrunoffzone in Cambrian limestone underground water could set up the base to prevent and control the seam floor water disaster.

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)；