济宁煤田鹿洼煤矿上组煤层水文地质特征分析  

Analysis of hydrogeological characteristics of upper coal seam in Luwa Coal Mine of Jining Coalfield

作　　者：张立川 许光泉[1] 陈洪年[2] 孙洪乐[3] 杨传伟 齐静 秦志强 Zhang Lichuan;Xu Guangquan;Chen Hongnian;Sun Hongle;Yang Chuanwei;Qi Jing;Qin Zhiqiang(School of Earth and Environment,Anhui University of Science and Technology,Huainan 232001,China;Shandong Lunan Geological Engineering Survey Institute(the second Geological Brigade of SDGM),Jining 272100,China;Luwa Coal Mine,Shandong Lutai Holding Group Co.,Ltd.,Jining 272350,China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队),山东济宁272100 [3]山东鲁泰控股集团有限公司鹿洼煤矿,山东济宁272350

出　　处：《能源与环保》2024年第1期127-134,共8页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：2023年山东省重点研发计划项目(2023CXGC010904)。

摘　　要：鹿洼煤矿已开采上组煤20余年,水文地质条件发生了变化,为了总结影响鹿洼煤矿上组煤开采的水害因素,在研究济宁煤田和鹿洼煤矿矿井水文地质条件的基础上,对上组煤层开采的充水因素进行了分析,并根据多年监测数据,利用“大井法”公式反演求解了导水裂隙带含水层渗透系数,采用解析法和比拟法预测了矿井涌水量。研究结果表明,鹿洼煤矿开采上组煤的主要充水水源为第四系下组下段孔隙水、老空水、侏罗系砂砾岩水、3煤顶底板砂岩水、三灰水和奥灰水,主要充水通道为断层、采动裂隙、封闭不良钻孔、岩溶陷落柱等;采用解析法预测的上组煤层正常涌水量为158.5 m^(3)/h,符合矿井实际,但建议采用比拟法预测的上组煤层正常涌水量219.23 m^(3)/h,最大涌水量328.85 m^(3)/h,提出了矿井水害防治建议。Luwa Coal Mine has mined the upper coal group for more than 20 years,and the hydrogeological conditions have changed.In order to summarize the water damage factors that may affect the mining of the upper coal group in Luwa Coal Mine,based on the study of the hydrogeological conditions of Jining Coalfield and Luwa Coal Mine,the water filling factors of the upper group coal seam mining were analyzed.According to the years of monitoring data,the permeability coefficient of aquifer in water conducted zone was solved by using the formula of"large well method",and the mine water inflow was predicted by analytical method and analogy method.The results show that the main water filling sources of the upper coal group in Luwa Coal Mine are pore water,goaf water,Jurassic sandy conglomerate water,sandstone water,three ash water and Ordovician ash water in the lower section of the Quaternary Lower Formation.The main water filling channels are faults,mining fissures,poorly sealed boreholes,karst collapse columns,etc.The normal water inflow of the upper group coal seam predicted by the analytical method is 158.5 m^(3)/h,which is in line with the actual situation of the mine.However,it is suggested that the normal water inflow of the upper group coal seam predicted by the analogy method is 219.23 m^(3)/h,and the maximum water inflow is 328.85 m^(3)/h.Suggestions on mine water disaster prevention and control are put forward.

关 键 词：济宁煤田 鹿洼煤矿 上组煤 水文地质 水害防治 

分 类 号：TD742[矿业工程—矿井通风与安全]