TaoZhigang, LiMengnan, PangShihui, GuMing, HeManchao. Research on mechanical property and engineering application of cable with high constant resistance and large deformation[J]. Journal of Mining Science and Technology, 2020, 5(1): 34-44.
Citation:
TaoZhigang, LiMengnan, PangShihui, GuMing, HeManchao. Research on mechanical property and engineering application of cable with high constant resistance and large deformation[J]. Journal of Mining Science and Technology, 2020, 5(1): 34-44.
TaoZhigang, LiMengnan, PangShihui, GuMing, HeManchao. Research on mechanical property and engineering application of cable with high constant resistance and large deformation[J]. Journal of Mining Science and Technology, 2020, 5(1): 34-44.
Citation:
TaoZhigang, LiMengnan, PangShihui, GuMing, HeManchao. Research on mechanical property and engineering application of cable with high constant resistance and large deformation[J]. Journal of Mining Science and Technology, 2020, 5(1): 34-44.
Inrecentyears,theintensityandfrequencyoflandslidegeologicaldisastershavebeenincreasing yearbyyear.Intheprocessoflandslideoccurrence,thetraditionalprestressedanchorcablecannotresist thelargedeformationofrockandcauseproblemssuchasbreakingandfailure.Inresponsetotheabove problems,threedifferenttypesofhigh-resistancelargedeformationanchorcables(NPRanchorcables)have beenindependentlydeveloped.Itscorestructureconsistsofaconstantresistancedeviceconnectedwitha traditionalanchorcable.Then,throughthefieldstatictensiletest,itisconfirmedthatthecablecanprovidea maximumworkingresistanceof850kNandalargedeformationof2000mm.Secondly,usingSTATICand GENERALquasi-staticanalysismethodinABAQUS,thenumericalsimulationanalysisofthestress-strain characteristicsoftheconstantresistancedeviceunderstatictensioniscarriedout.Theanalysisresultsprove that the NPR anchor cable stretching process is a process of constant resistance and energy absorption.Finally,throughfieldapplication,itisverifiedthattheNPRanchorcablestructurecanbedeformedgreatlywiththeinstabilityoftheslope,whichavoidsthetraditionalanchorcablebeingbrokendueto largedeformation.Itachievesthegoalofintelligentintegrationoflandslidehazardprevention,monitoringand forecastingandprovidesascientificbasisforreasonablyexplainingtherelationshipbetweenthelawoflandslidemigrationandthemonitoringandearlywarningcurve.
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