考虑渗流影响的超深基坑开挖变形分析

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中图分类号：TU753 文献标志码：A 文章编号：2095-2945（2025）30-0055-05

Abstract：Inordertoanalyzethedeformationlawduringtheexcavationofultra-deepexcavationsandthedeformation characteristicsafectedbyseepage.Anultra-deepexcavationnearariverinWenzhouareawasselected，andtheexcavation processof theexcavationwassimulatedbythesepage theoryusingPLAXIS3Dfiniteelement software.Thehorizontal displacementofretainingwallsoftheexcavation，thegroundsetlementoutsidetheexcavationandtheupliftoftheexcavation bottomareanalyzed.Andcomparedwith thedeformationofexcavationwithoutconsideringtheefectofsepage.Theresults showsthatthesepageeffectwillicreasethehorizontaldisplacementofretainingwall，，andwillicreasethedepthofthe maximumhorizontaldisplacementofretainingwall.Theseepageefectwillincresethemaximumgroundsetlementoutsidethe excavationandthedistancebetweenthemaximumsetlementpositionandthesupportwals.Sepagewillgreatlyincreasethe uplftvalueoftheexcavationbottomnearthesideoftheretainingwall，whichshouldbepaidatentiontoinpractical engineering.

Keywords： foundation pit engineering; seepage; displacement; finite element analysis; PLAXIS 3D

因城市建设和水利交通发展的需要，基坑工程呈现出深度大和开挖环境复杂等特点。（剩余5742字）