上海地下水回灌优化防控地面沉降策略研究

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中图分类号：P641.8；P66 文献标志码：A 文章编号：2095-1329（2025）03-0062-06

Abstract：Landsubsideneis teprimarygeologicalhazardinSanghaiposingalong-temserousthreattourbansafetyandustaiable socioeconomicdevelopment.Althoughthesubsidenceratehas notablydecreased，unevensubsidenceremains prominent，demanding increasinglypreciseontroland preventionmeasures.Currntlygroundwaterextractionandrecargeareunevenlydistributedacross regions andaquiferlayers，with localized groundwater depresion cones persisting incertainareas.The existing extraction-recharge paterstillfails tometsubsidencecontrolrequirements.Thisstudyconductsanin-depthanalysisoflong-termgroundwaterand subsidencemonitoringdatainSangharoposinganotiizedgroundwaterchargsheme.Usingare-dimensionalgroudater sepageandon-dimensioalsubsdenecoupledmathematicalmodel，tesheme'sefectivenes initigatingsbsidencesalidated. Results indicate that reducing total annual recharge volume by 5% while strategically shifting recharge focus toward general subsidence controlzonescanachevesubsidencemanagementtargetshileoptizingresourceallcation.Tisoptizedapproachprovidescitical decision-making support for precision subsidence control and prevention.

Key Words：and subsidence;precision preventionandcontrol; groundwaterartificialrecharge; preventionandcontrolstrategy

地面沉降作为全球性地质灾害[1-2]，长期以来严重威胁着沿海城市安全和经济社会可持续发展[3]，也是上海地区最主要的地质灾害。（剩余8289字）