Page 187 - 《水资源与水工程学报》2023年第4期
P. 187

!34 " ! 4 #                       & ' ( ) & * + , -                               Vol.34No.4
               2023 $ 8%                JournalofWaterResources&WaterEngineering                 Aug.,2023

            DOI:10.11705/j.issn.1672-643X.2023.04.22


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                 MNOPQ:TV223.2   7RSTU:A    7VWQ:1672643X(2023)04018308

                           Servicelifeoflimestoneslopesbasedondissolutionrate

                                                               2
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                               1
                                                                            2
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                          LIZe,YANGYuanhao,LIUWenlian,XUHanhua,ZHANGXiaoyan
                (1.FacultyofCivilEngineeringandMechanics,KunmingUniversityofScienceandTechnology,Kunming650500,China;
                    2.KunmingProspectingDesignInstituteofChinaNonferrousMetalsIndustryCo.,Ltd,Kunming650051,China;
                   3.FacultyofElectricPowerEngineering,KunmingUniversityofScienceandTechnology,Kunming650500,China)
                 Abstract:Thepredictionofslopeservicelifecanquantitativelyandaccuratelyevaluatethelongterm
                 safetyoflimestoneslopes,butitspredictionmodelisnotyetfullydeveloped.Therefore,inordertosolve
                 theproblemofservicelifecalculationoflimestoneslopes,anoptimizationmethodbasedondissolution
                 rateisproposed.Takingtheservicelifeoflimestoneslopeastheobjectivefunction ,theeffectivelength
                 ofthepenetratedsectionandnonpenetratedsectionandtheshearparametersofthestructuralsurfaceaf
                 terseveralyearsofservicewerecalculatedaccordingtothedissolutionrateandtheattenuationrateofthe
                 shearparameters.Combinedwiththeequilibriumequationoftheslidingbodyandtheyieldconditionsof
                 thepenetratedandnonpenetratedsectionofthestructuralsurface ,thestablenonlinearmathematicalpro
                 grammingmodelofthelimestoneslopeforlongterm servicewasestablished ,andthenthemodelwas
                 solvedbythe“sequentialquadraticprogrammingmethod”toobtaintheservicelifeoftheslope.Accord
                 ingtothecomparison,themeanrelativeerrorbetweenthenumericalsimulationresultsofthefiniteele
                 mentmethodandtheproposedalgorithmis2.47%,indicatingthatthealgorithmcanaccuratelypredict
                 theservicelifeoflimestoneslopes.
                 Keywords:limestoneslope;servicelife;dissolutionrate;slopestability;nonlinearmathematicalpro
                 grammingmodel







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