基于離散元方法的重復(fù)采動(dòng)對(duì)順層巖質(zhì)邊坡穩(wěn)定性的影響研究

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中圖分類號(hào)：U416. 1 + 4 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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

隨著“十四五”規(guī)劃以及“一帶一路”戰(zhàn)略的實(shí)施，我國(guó)對(duì)能源的需求不斷增大。（剩余6314字）