基于微震监测的重复采动煤层潜在导水通道形成规律研究  

Study on the formation law of potential waterconducting channel in repeated mining coal seambased on microseism monitoring

作　　者：刘睿 杨波 尚斌 Liu Rui;Yang Bo;Shang Bin(Hebei Coal Research Institute Co.,Ltd.,Xingtai 054000,China;Key Laboratory of Mine Water Disaster Detection and Prevention and Control,National Mine Safety Administration,Xingtai 054000,China;Hebei Key Laboratory of Mine Microseismicity,Xingtai 054000,China)

机构地区：[1]河北煤炭科学研究院有限公司,河北邢台054000 [2]矿井水害探测与防控国家矿山安全监察局重点实验室,河北邢台054000 [3]河北省矿井微震重点实验室,河北邢台054000

出　　处：《煤炭与化工》2024年第8期56-61,共6页Coal and Chemical Industry

基　　金：邢台市重点研发计划项目(2022zz048)。

摘　　要：为了避免煤矿深部煤层开采突水事故发生,探索重复采动工作面开采过程中底板潜在导水通道形成规律,以平顶山天安煤业股份有限公司十矿己17-33200工作面为工程背景,在两巷采取“梅花”式布置20个检波器,组成全包围式监测阵列,对工作面进行连续、实时、动态监测,利用微震技术对下层煤重复开采过程中上覆岩层塑性区破坏变化规律及底板深部微震事件进行分析,并结合理论计算探究潜在导水通道的形成规律。In order to avoid the occurrence of water outburst accidents in deep coal seam mining,the formation law of potential water conducting channels in the floor during the mining process of repeated mining face was explored.Taking No.Ji 17-33200 Face of No.10 Mine of Pingdingshan Tian'an Coal Industry Co.,Ltd.as the engineering background,20 geophones were arranged in the'Meihua'type in the two roadways to form a fully enclosed monitoring array to continuously,real-time and dynamically monitor the working face.The microseism technology was used to analyze the failure law of the plastic zone of the overlying strata and the deep microseism events of the floor during the repeated mining of the lower coal,and the formation law of the potential water conducting channel was explored in combination with the theoretical calculation.

关 键 词：重复采动煤层工作面 导水通道 微震监测 矿井防治水 

分 类 号：TD74[矿业工程—矿井通风与安全]