基于三维激光扫描与数值模拟的粤北典型岩溶洞穴稳定性研究

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中图分类号：P642.25 文献标志码：A 文章编号：2095-1329（2025）03-0098-10

Abstract：Thestabilityevaluationofnaturalkarstcaves tobedevelopedwasofgreatsignifcaneforensuringengineringsafetyand geologicalenvoentalprotectio.Tispaprtookatpicalnaturalarstcaveinortheuangdongasteesearchbetlaser scaningtechnologywasemployedtoacquirehig-precisioncavemorphologydata，anda3Dsolidmodelofthecavewasestablished.A varietyfmethodswerecompreensielyutilizdtoanalyzeitsstabilityinetail.Qualittieandsemquantiatieanalysisaprochs wereusedtoiitiallyassessthecave'sstabilitybyconsideringboththegeologicalandspatialmorphologicalfeaturesofthecave. Meanwhile，thefiniteelementnumercalsimulatiometodwasadoptedtoomputeandanalzethestres，displacement，adplastic Zonedistributionofthecave under diferent working conditions.Bycomparingand analyzing thesimulation outcomes under various workingconditions，thestabilityofthecavewasevaluated.Teresearchfdingsshowedthatthenaturalkarstcavehadgoodoveal stabilityundethecurentstateNeverthele，tereereertainstresoncetrationndplasticdeformatiopenomeainsoeloal regions.Inresponsetothesepotentialunstablefactors，thispperputsfardcorspondingengineeingreinforcementsuggestions， providing a scientific basis for the subsequent development and utilization as wellas safety managementof the karstcaves.

Keywords：karst cave; stability assessment; 3D laser scanning;numerical simulation

溶洞失稳可能引发严重的地质灾害，如顶板坍塌、地面塌陷等[9-10]，不仅会破坏洞穴的完整性，危及洞穴内人员的安全，还可能对周边环境造成破坏。（剩余14558字）