顺层路堑滑坡灾变演化分析及变形预警研究

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中图分类号：P642 文献标志码：A 文章编号：1005-8249（2025）06-0066-06

DOI：10.19860/j.cnki.issn1005-8249.2025.06.012

Abstract：Toensurethesafeconstructionandoperationofhighways，takingacertainlayeredroadcutlandslideasthe enginering background，thisstudyfirst analyzesthe causesandevolution processof such landslide disasters.Basedon deformation monitoringdata，onthebasisofdatadenoising procesing，acomprehensivestudyonlandslidedeformation warning andgrading iscarriedoutthroughstablestate，deformation，andratecriteria.Theresultsindicatethatthedeformation characteristicsofroadcutlandslidesaresignificant，thecausesofdisastersarerelativelycomplete，andtheevolutionprocessof thisroadcutlandslideisalsorelativelyclear；GAKalmanfilteringcanefectivelyachievedenoisingoflandslidedeformation data，with significantadvantagesoverothermethods.Aftercomprehensivewarninganalysis basedonthreecriteria，the waring levelof theresurgentsectionoftheroadcutlandslidebelongstolevelII-IV，andthewarminglevelofthe nonresurgentsection is levelI.Overall，thestabilityoftheresurfacingsectionof theroadcutlandslideispoor.Theresearchresultscanprovide reference for similar landslide projects.

Key Words： cutting landslide； causes of disaster; evolution process ； early warning research

0 引言

在道路工程建设过程中，受地形条件限制，会形成一定规模的路堑，且由于路堑开挖，会改变施工区的原始地形地貌，造成其坡体应力改变，若未及时采取防治措施，极易导致路堑局部抗滑能力减弱，诱发老滑坡复活，因此，对路堑滑坡灾害研究具有较强的现实意义[1-2]

目前，已有不少学者开展了路堑滑坡的相关研究，如马坤等[3利用模型试验开展了土体含水率对路堑滑坡的影响规律，即土体含水率越大，滑坡稳定性越差；陈爱云等[4]利用室内试验开展了路堑边坡的蠕变规律分析，得出当水平剪切应力增加时，瞬时蠕变量具先减小后增大特征；侯李杰等[5基于红层路堑滑坡现场调查及勘察成果，总结了该类灾害的成因；吴昊城等利用层次分析法等构建了超高路堑滑坡的风险评价体系，为定量掌握该类路堑滑坡的风险状态提供了一种思路。（剩余6662字）