基于高频低振幅共振破碎技术的路面结构力学行为研究的中期报告.docx

基于高频低振幅共振破碎技术的路面结构力学行为研究的中期报告

Abstract

Thismid-termreportpresentstheprogressmadeinresearchonthemechanicalbehaviorofpavementstructuresusinghigh-frequencylow-amplituderesonancebreakingtechnology.Thereportfocusesonthefollowingaspects:theoreticalanalysisofresonancebreakingtechnology,experimentalsetup,andpreliminaryexperimentalresults.Basedontheanalysisandexperimentsconducted,thestudyshowspromisingresultsthatcanbeexploredfurthertoimprovetheknowledgeofthemechanicalbehaviorofpavementstructuresandprovideinsightsforpavementdesignandmaintenance.

Introduction

Pavementstructuresareanessentialcomponentoftransportationinfrastructurethatrequiresfrequentmaintenanceandrehabilitationduetotheeffectsoftrafficloadandenvironmentalfactors.Inadequatedesignandmaterialselectioncanleadtorapiddeteriorationofthestructure,potentiallycausingsafetyhazardstovehiculartraffic.Maintenanceandrehabilitationofthesestructuresareessentialforthesafetyofroadusers.However,themethodsusedforevaluatingthepavementstructurehealthhavelimitationsintermsofaccuracyandaccessibility.

Recently,theuseofhigh-frequency,low-amplituderesonantfrequencytechnologyhasincreasedinthefieldofpavementevaluation.Thistechnologyinvolvesinducingresonanceinthepavementstructureathighfrequencieswhilemeasuringtheamplitudeofvibration.Themeasuredamplitudecanthenbeusedtoassesstheconditionandmechanicalpropertiesoftheroadstructure.

Thisreportpresentstheprogressmadeinresearchaimedatexploringthemechanicalbehaviorofpavementstructuresusinghigh-frequency,low-amplituderesonancebreakingtechnology.Thereportdiscussesthetheoreticalanalysisofresonancebreakingtechnology,experimentalsetup,andpreliminaryexperimentalresults.

TheoreticalAnalysis

Thehigh-frequency,low-amplituderesonancebreakingtechnologyinvolvesapplyin