Home > Archive>Volume 47, Issue 7, 2020 >94-99. DOI:1672-7428（2020）07-0094-06
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Treatmentandanalysisofthefoundationpitwaterinrushincident inNanjingJiangbeiNewDistrict
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NanjingDarcyGeotechnicalEngineeringCo．,Ltd．

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TU４６＋３

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    Abstract:

    ThefoundationpitwaterinrushincidentontheundergroundspacefirstＧstageworksinthecentralareaof theJiangbeiNewDistrict,Nanjinghappenedduetolackofcompactionofthebackfillingintheabandonedpileholes inthefoundationpit,whichcausedtheconfinedwaterinthedeeppressurizedaquifertopenetratetheabandonedpile holes,leadingtothewaterinrushincident．Aftertheincident,theholeswerebackfilledwithconcretetocounter waterinrush,andthengroutedtosealoff．Butnoneofthemsucceeded．Throughinvestigationandanalysis,the dewateringprogram wasadopted,wherebythedeepconfined waterlevelwasloweredbelowthe waterinrush positionandgroutwasinjectedtosealoffwithoutthegushingwater．Thisdewateringprogramtook１８daysto successfullyresolvethewaterinrushincident,whichcanprovideusefulexperienceforsimilarprojects

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History
  • Received:October 28,2019
  • Revised:April 09,2020
  • Adopted:April 10,2020
  • Online: August 13,2020
  • Published:
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