基于井下示踪试验的旧采空区水运移路径识别  

Runoff channel identification of goaf water based on downhole tracer test

作　　者：魏亚辉 崔俊超 阚雪冬 张波 张平卿[2] 王心义[1,5,6] WEI Yahui;CUI Junchao;KAN Xuedong;ZHANG Bo;ZHANG Pingqing;WANG Xinyi(Institute of Resources and Environment,Henan Polytechnic University,Jiaozuo 454000,Henan,China;Pingdingshan Tian’an Coal Mining Co.,Ltd.,Pingdingshan 467000,Henan,China;Guhanshan Coal Mine,Henan Coking Coal Energy Co.,Ltd.,Jiaozuo 454000,Henan,China;The Research Institute,China Pingmei Shenma Group,Pingdingshan 467000,Henan,China;Henan Cooperative Innovation Center of Coalbed Methane(Shale)in Central Plains Economic Zone,Jiaozuo 454000,Henan,China;Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization,Jiaozuo 454000,Henan,China)

机构地区：[1]河南理工大学资源环境学院,河南焦作454000 [2]平顶山天安煤业股份有限公司,河南平顶山467000 [3]河南焦煤能源古汉山矿,河南焦作454000 [4]中国平煤神马集团能源化工研究院,河南平顶山467000 [5]中原经济区煤层(页岩)气河南协同创新中心,河南焦作454000 [6]煤炭安全生产与清洁高效利用省部共建协同创新中心,河南焦作454000

出　　处：《河南理工大学学报（自然科学版）》2022年第5期24-31,共8页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(41972254);河南省创新型科技人才队伍建设工程项目(CXTD2016053);河南省高校基本科研业务费专项项目(NSFRF200103)。

摘　　要：为探明旧采空区水运移路径,避免矿井发生水灾事故,针对多煤层开采旧采空区垂向叠覆、平面交错等展布特征,以平顶山市香安煤业有限公司香安矿为研究对象,基于旧采空区压密程度和示踪试验探查其水力连通性,判识地下水的运移路径。结果表明:香安矿副井至井下涌水点间旧采空区水流速度为211.26~1 425.64 m/d,渗透系数为509.06~5 964.29 m/d,较高的旧采空区水流速度和极大的渗透系数证明了井下强径流通道的存在;旧采空区水运移路径由采空区渗流路径和巷道径流路径共同组成,旧采空区至22091风巷和九矿42机巷2个出水点以巷道径流路径为主,至-593 m泄水巷出水点以采空区渗流路径为主,至16150机巷外口出水点由巷道径流路径和采空区渗流路径共同组成,且前者占比大。研究结果可为类似矿井旧采空区水运移路径精准识别提供理论参考。In order to find out the migration pathway of the goaf water and avoid mine flood accident,taking the Xiang’an Mine of Pingdingshan Xiang’an Coal Industry Co.,Ltd.as the research object,based on the analysis of vertical overlapping and plane staggered distribution characteristics of the goaf in multi-coal seam mining,the groundwater hydraulic connectivity and migration path were identified by the calculation of goaf compaction degree and the tracer test.The results indicated that from the auxiliary shaft to the groundwater outlet point,the flow velocity in goaf was 211.26~1 425.64 m/d,and the permeability coefficient was 509.06~5964.29 m/d.The high flow velocity and permeability coefficient proved the existence of strong groundwater runoff channel;The migration path of goaf water was the coexistence of goaf seepage and roadway runoff.Among them,the waterflow from goaf to 22091 airflow roadway and two outlet points at No.42 conveyor roadway in No.9 coal mine were mainly transported by roadway runoff,from goaf to-593 m water drainage roadway,the waterflow was mainly migration by goaf seepage,and from goaf to the water outlet points at external opening of 16150 conveyor,the path was composed of roadway runoff and goaf seepage,and the roadway path accounted for a larger proportion.The research results could provide reference for accurate identification of goaf water transport path which was urgently needed in similar mines.

关 键 词：旧采空区 压密程度 示踪试验 渗透系数 水运移路径 

分 类 号：P641[天文地球—地质矿产勘探]