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在線閱讀 --自然科學版 2020年6期《山東省德城區深層地下水資源流場演化及水質動態分析》
山東省德城區深層地下水資源流場演化及水質動態分析--[在線閱讀]
段曉飛, 黃星, 劉帥, 楊亞賓
山東省地質礦產勘查開發局 第二水文地質工程地質大隊, 山東 德州 253015
起止頁碼: 539--546頁
DOI: 10.13763/j.cnki.jhebnu.nse.2020.06.013
摘要
為探討山東省德城區深層地下水動態變化及流場演化過程,對德城區多年深層地下水開采量、水位及水質動態觀測數據進行了詳細分析.研究發現:經過50多年的開采,地下水流場發生了巨大的變化,降落漏斗中心位于陳莊鄉張莊一帶,水位標高-120m左右,漏斗中心水位較開采初期下降了近140m,整個德城區均被-50m等水壓線圈閉.深層地下水控制開采后,降落漏斗水平擴展及垂向下降速率都有不同程度的放緩,漏斗中心水位持續下降,但速率明顯放緩,水力梯度下降,整體上趨于平緩.多年來深層地下水水化學組分比較穩定,水質并未發生實質性變化,受外界人為因素和自然變化影響較小.

Evolution of Deep Groundwater Resource Flow Field and Dynamic Analysis of Water Quality in Decheng District,Shandong Province
DUAN Xiaofei, HUANG Xing, LIU Shuai, YANG Yabin
The Second Hydrogeology Engineering Geology Brigade, Shandong Provincial Bureau of Geology and Mineral, Shandong Dezhou 253015, China
Abstract:
The dynamic changes of deep groundwater and the evolution process of flow field in Decheng district are studied.The data of deep groundwater exploitation in Decheng district,water level and water quality dynamic observation data are analyzed in detail.Results show that the groundwater flow field has undergone tremendous changes in more than 50 years of mining.The center of the funnel is located in Zhangzhuang area of Chenzhuang township.The water level is about -120m,and the water level at the funnel center is nearly 140m lower than that at the initial stage of groundwater extraction.The urban area is closed by water pressure line of -50m.After deep groundwater control mining,the horizontal expansion and vertical decline rate of the falling funnel have slowed down to varying degrees,and the water level at the funnel center continues to decrease,but the rate slows down,the hydraulic gradient decreases,and the overall trend is flat.The chemical composition of deep groundwater has been relatively stable over the years,and the water quality has not changed substantially,and it is less affected by external human factors and natural changes.

收稿日期: 2019-10-24
基金項目: 山東省地質礦產勘查開發局地質勘查項目(HJ201922);山東省國土資源廳省直地質勘查項目(魯勘字(2016)78號)

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