基于离散元方法的重复采动对顺层岩质边坡稳定性的影响研究

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中图分类号：U416. 1 + 4 文献标志码：A 文章编号：1005-8249（2025）02-0054-06

DOI：10.19860/j.cnki.issn1005-8249.2025.02.010

Abstract：Inorderto studytheefectofrepeated miningonthe stabilityofbeddngrockslope，thispaperusesUDEC software toestablishatwo-dimensionalnumericalmodelbasedonthediscreteelementmethod.Throughanalyzingthemechanical characteristicsof theslopeunderdiferentmining depthratiosanddiffrent mining positions，themechanicalresponse mechanism isobtained.Themainconclusionsof thispaperareas folows：thechangeof miningdepthratio hasasignificant impactonthebasementrock，and with thedecreaseof thedepthratio，thedisplacementofthebasementrock stratumis increasing，theshearstressisdecreasing，thevertical stressisincreasing，andtheshear strengthofthe layeris decreasing， whichleads tothereductionofslopestability；Thereductionoftheminingdepthratiowillcausethesteeprock masstosink， andthenleadtotheincreaseofthedisplacementoftheweak interlayer；Whenthedepthratioisdiferent，thehorizontal displacementcurveofthe weak interlayerhasthesamechangerule，andtheoveralltrend is"increasefistandthendecrease"; The study can provide a reference for the mining of bedding rock slope mines.

Key words：bedding rock slope；discrete element；repeated mining；stability

0 引言

随着“十四五”规划以及“一带一路”战略的实施，我国对能源的需求不断增大。（剩余6314字）