简介:公路工程项目是我国社会经济稳定发展的重要基础,做好公路工程施工及养护质量管理工作非常关键。基于此,本文首先针对我国公路工程项目建设施工以及养护工作中的相关质量管理问题进行阐述,并且提出针对性的质量管控工作策略,有效提高公路工程项目施工和养护工作质量,提高公路工程通车安全性和稳定性,为后续类似项目工程建设施工的顺利开展打下良好的基础。
简介:Basedontheprincipleofimpedancemismatching,theperformanceofrigidvibrationisolationmassinimpedingvibrationwavepropagationwasdiscussedfromtheperspectiveofwaveapproach.BasedonFEM,theinfluenceofitsweightaswellasthecross-sectionshapeparametersontheisolationperformanceofrigidvibrationisolationmasswasstudiedthroughnumericalsimulation.Theresultsshowthatrigidvibrationisolationmasscaneffectivelyimpedethepropagationofthemediumandhighfrequencyvibrationwaves,andtheheavierthevibrationisolationmass,thebettertheisolationperformance.Forlowfrequencywaves,thevibrationisolationeffectisnotsoobvious;forarectangularvibrationisolationmass,theisolationperformancecouldbeeffectivelyimprovedbyincreasingthecross-sectionheightandreducingthecross-sectionwidth.Ausefulreferencewasprovidedfortheapplicationofrigidvibrationisolationmassestothevibrationisolationandnoisereductionofshipstructure.