基于煤层顶板抽水试验的含水层水力联系研究  

Study on Aquifer Hydraulic Connection based on Pumping Test of Coal Seam Roof

作　　者：彭涛[1] 龙良良 刘凯祥 王生全[1] 牛超[1] 刘洋 刘慧 PENG Tao;LONG Liangliang;LIU Kaixiang;WANG Shengquan;NIU Chao;LIU Yang;LIU Hui(College of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054,China;CCTEG Xi’an Research Institute, Xi’an 710077,China;The 908 Environmental Geology Co., Ltd. of Shaanxi Geological and Mineral,Xi’an 710600,China)

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]中煤科工集团西安研究院有限公司,陕西西安710077 [3]陕西地矿九○八环境地质有限公司,陕西西安710600

出　　处：《矿业安全与环保》2019年第3期66-69,73,共5页Mining Safety & Environmental Protection

基　　金：国家自然科学基金青年科学基金项目(41807192);陕西省教育厅2018年度专项科学研究计划项目(18JK0518)

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.

关 键 词：曹家滩井田 含水层 风化基岩 水力联系 抽水试验 

分 类 号：TD74[矿业工程—矿井通风与安全]