龙门煤矿透水对洛阳地震台地下流体观测干扰分析  

Analysis on the observation interference of permeable water in Longmen coal mine to the underground fluid of Luoyang seismic station

作　　者：谢佳兴 刘庆华 侯博文 郅红魁[1] XIE Jia-xing;LIU Qing-hua;HOU Bo-wen;ZHI Hong-kui(Luoyang Seismological Station,Henan Seismological Bureau,Luoyang 471000,China)

机构地区：[1]河南省地震局洛阳地震台,河南洛阳471000

出　　处：《地下水》2020年第6期18-21,共4页Ground water

基　　金：中国地震局监测预报科研三结合课题(3JH-202002019)。

摘　　要：矿井突水是困扰煤矿安全开采的重要因素,也对煤矿所在区域地下流体有极大影响。以2016年5月11日发生在河南洛阳龙门煤矿的透水事故为例,对照洛阳地震台地下流体资料,对溶解气氡浓度、取样水温和取样水位的偏年变趋势变化特征进行分析,并参考历年地下流体数据与龙门煤矿透水后异常数据进行对比研究,结果认为:龙门煤矿透水事故对洛阳地震台溶解气氡浓度、取样水温和取样水位的影响均较大。矿井突水前期一月至结束期间,透水事故给洛阳台流体监测造成了严重的数采干扰,严重破坏了氡浓度值测定的年变趋势,导致产生了近4个月的偏年变趋势和2016年度年变周期变化模糊现象,给地球物理场观测带来了无法利用的流体参考数据;同时透水事件也对洛阳地震台水温、水位观测产生了宏观影响,造成监测水位突降,地层压力减弱,气溶量也随之减弱,形成了短期水温与水位的正比关系。研究结果充分证明了矿井突水对地下流体监测有着重大的干扰依据。Mine water inrush is one of the important factors,problems of coal mine safety mining area in coal mine underground fluid also has great influence on May 11,2016 in Henan Luoyang Longmen coal mine flooding accident,for example,contrast Luoyang seismic subsurface fluid data,radon concentration of dissolved gas sampling sampling water temperature and water level of the variable trend variation characteristics were analyzed,and the partial year and refer to the calendar year after the subsurface fluid data with Longmen coal mine flooding comparative study on the abnormal data,the results suggest:Longmen coal mine flooding accident of Luoyang seismological station of dissolved gas radon sampling sampling water temperature and water level are largerMine water inrush early January to the end of the period,the flooding to Luoyang fluid monitoring machine caused serious number of mining disturbance,serious damage to the annual variation trend of the radon density determination,nearly four months of partial cause change trend and 2016 annual cycles of fuzzy phenomenon,brought geophysical field observation can't use the reference data of fluid;At the same time,the water leakage event also had a macro impact on the observation of water temperature and water level of Luoyang seismic station,resulting in a sudden drop of the monitored water level,weakened formation pressure,and also weakened gas solubility,forming a direct relationship between short-term water temperature and water level.The research results fully proved that mine water inrush has a significant interference basis for the monitoring of underground fluid.

关 键 词：龙门煤矿 地下流体 煤矿透水 洛阳地震台 

分 类 号：P641.461[天文地球—地质矿产勘探]