永平铜矿排土场安全稳定性分析

永平铜矿排土场安全稳定性分析

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时间:2019-02-20

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1、①Aspreviouslymentionedmeasurestakentoenhanceslopestabilityandreducethelikelihoodofdebrisflow.②Dumpsitesurfacewatertreatment.Dumptheformationofdebrisflowmainlydependsonsurfacewaterandrainwaterondumpsitetheroleoferosionanderosion,thenstrengthenthedumpsurfaceitself

2、anditssurroundingcatchmentsgovernanceisclearlyessential,greatlyreducedifthewater,thencancontroltheoccurrenceofdebrisfloworonlyaverysmalllocalscale.Ontheonehandtotheconstructionofdrainagechannel,blockingthefieldtripdumpingdumpsitewaterintothesink;theotherhand,apl

3、atformdumpsitetobeflatto2%to3%oftheanti-slope,topreventwastedumpsiteplatformitselfcatchmentsslopeintotheslopeanderosion,theexchangeofwaterfromthedumpareatominimizeinfiltrationdumpsite.③Debrisflowinordertoprotectfarmlanddownstreamindustrialfacilitiesandthesafetyo

4、fdebrisflowcontrolbasedonexperienceofmineintheareaandstoptheflowofdebrisbuildpollutereserveareaappropriatedam,damandotherstructuresinbamboocagestoLandangsoliddebriswasheddownmaterial.④Dumpsitevegetation,slopeprotectionisnotconducivetorainfall,reducinginfiltratio

5、nofwaterinsidethedumpsite.⑤Debrisflowduetolackofthenecessarysitemonitoring,dataminingandothermeteorologicalobservations,thisstudydoesnotincludethecontentsofdebrisflowforecast.FromFLAC3Dsimulationresults,whentherainfallintensityislarger,morecontinuousrainfallform

6、orethan15d,dumpsitewasgraduallymovingtolimitstatemaydecline,andeventheformationofdebrisflow.Therefore,continuousraincanbeawarningtimeof15d,usedasabasisfordeterminingtheinitialformationofdebrisflow,to15d,whenthisrain,theyshouldtakeappropriatedrainage,drainagemeas

7、ures,theimpactofreducedwater.Keywords:Dumpsite;Slope;Stability;DebrisflowV目录摘要...........................................................................................................ⅠAbstract...............................................III第一章绪论.............

8、................................11.1研究背景与意义..........................................................................11.2边坡稳定性研究现状和发展趋势...............................

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