河北丰南井水位大幅下降异常分析  

Analysis on water level abnormal decline of Fengnan well in Hebei province

作　　者：唐杰 李楠 张素欣[1] 盛艳蕊[1] 丁志华[1] TANG Jie;LI Nan;ZHANG Su-xin;SHENG Yan-rui;DING Zhi-hua(Seismological Bureau of Hebei Province,Shijiazhuang 050021,China;Hebei Jimeng Environmental Protection Engineering Co.,LTD.,Hebei Shijiazhuang 050081,Hebei)

机构地区：[1]河北省地震局,河北石家庄050021 [2]河北集梦环保工程有限公司,河北石家庄050081

出　　处：《地下水》2021年第5期58-60,73,共4页Ground water

基　　金：河北地震科技星火计划重点项目(DZ20190424079)。

摘　　要：2020年6月河北丰南井水位短时间内出现大幅度下降变化,8月中旬水位恢复,最大降幅达56m。为了准确地对该异常进行判定,本文通过观测系统检查、环境因素分析、水化学离子分析以及构造活动分析等相关工作对丰南井地下水动态变化成因及开采干扰进行分析。综合分析认为:降雨减少、农业灌溉地下水大量开采在丰南井水位下降中占一定比例,除此之外,还存在构造因素的影响,但不能完全交代于本次异常变化,周边煤矿开采疏干水是引起本次水位异常的主要原因。The water level of Fengnan well in Hebei province decreased significantly in a short period of time,and recovered in mid-August,with a maximum drop of 56 m,in June 2020.In order to judge the anomaly accurately,analyzed the cause of groundwater dynamic change and mining interference of Fengnan well through observation system inspection,environmental factor analysis,hydrochemical ion analysis and tectonic activity analysis.Comprehensive analysis shows that the decrease of rainfall and large-scale exploitation of groundwater for agricultural irrigation account for a certain proportion of the decline in fengnan well water level.In addition,the influence of structural factors are exists,which cannot be completely explained,drainage water from surrounding coal mines is the main cause of this abnormal water level.

关 键 词：丰南井 水位下降 异常分析 煤矿开采 

分 类 号：P641.74[天文地球—地质矿产勘探]