降雨作用下缓倾岩质边坡滑移破坏机制研究

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中图分类号：TV871 文献标志码：A 文章编号：1005-8249（2025）03-0096-05

DOI：10.19860/j.cnki.issn1005-8249.2025.03.018

Abstract：Investigatingtherainfallefectontheslidingfailure mechanismofinclinedrock slopes，takingthesoftrock froma reservoirlandslideinaspecificregionasthegeological prototype，physical modeling experimentscombinedwith numerical simulationsareconductedtoreproducethestressanddeformationcharacteristicsoftheslope.Theresultsindicatethat，under conditiosofrainfallandexcavation，therock layers initiallyexperiencebending，folowedbytensile failuresparaleltothe bedingsurfaces．Continuedbendingandoverturningresultinflexural-tensilefailures，causing bendingandcracking phenomnato extend towardtheupper partof the slope.Ultimately，localized tensile failures propagateupward to theslope crest，causing rocks to slidedownwardalongthesurfaceand leading toslope instability.These findings providevaluable references for similar engineering projects.

Key words：gently inclined rock slope；finite discrete element method； failure mechanism；centrifuge mode

0 引言

缓倾岩质边坡在多雨地区广泛分布，极易在降雨诱发下发生滑移破坏，给工程建设和区域安全带来隐患。（剩余5393字）