简介:Thevariationinload/unloadresponseratiobeforesomemoderateearthquakesisanalyzedbasedonthetheoryoftheload/unloadresponseratio.Theresultsshowthattheload-unloadresponseratioincreasesnoticeablybeforemoderateearthquakes,andtherearethreekindsofpatternsinwhichtheload/unloadresponseratiovariesandthedurationofnoticeableincreaseinload/unloadresponseratiorangesfromhalfayeartotwoyears.
简介:【摘要】 针对PROTOS-M5卷烟机的卷烟纸拼接过程发生烟条断裂或卷烟纸断裂故障,而增加挡车工工作量、影响设备效率及消耗增加的问题,依据卷烟纸拼接与输送原理,找出问题所在:BOB盘纸的限位环发生轴向偏移。通过对限位环的工作原理与自身尺寸进行分析,对限位环进行轴向限位改进。改进后,解决了卷烟纸拼接时发生烟条断裂或卷烟纸断裂的停机故障,提高了设备的生产效率。
简介:摘要:随着公路工程越来越多,由于现场条件限制,以及设计方案特性,成本管控精细化,施工质量追求精品,因此对项目管要求更高,要有从管理中出效益,小箱梁的应用已成常态化,架设主要有架桥机、龙门吊、架桥机和履带吊组合架梁,本文将对预制小箱梁架设方案选择方面进行阐述,应根据工程实际情况进行编制,专项施工方案具有指导意义以及安全性、可行性、经济性,重要介绍架梁方案如何选择。
简介:OnApril25,2015,aM_S8.1earthquakeoccurredinNepal.IntheTibetareaofChina,thisearthquakecausedheavycasualtiesanddamagetohousing,roads,communications,otherlifelineengineering,waterconservancyandotherinfrastructure.Thispaperintroducesthebasicsituationoftheearthquake,andbasedontheinvestigationandassessmentofseismicintensity,thedamageofthedisasterareaisanalyzed,andbuildingtypesanddamagetothelifelinesystemsandvariousindustriesaregiven.Throughtheanalysisofthecharacteristicsoftheearthquakedisaster,thispaperpointsouttheexistingproblemsinseismicfortification,andfinallyputsforwardproposalsforthepreventionandcontrolofearthquakegeologicaldisasters,scientificplanningfortherestorationandreconstruction,strengtheningearthquakepreventionanddisasterreductionpropaganda,improvingtheawarenessofearthquakepreparednessintheagriculturalandpastoralareas,strengtheningtheguidanceandsupervisionofhousingconstructioninruralareastoreducethecasualtiesandlosses,andpromotingtheharmoniousdevelopmentofeconomyinTibet.
简介:摘要 :后张法 40m预应力箱梁预制技术在桥梁施工过程中应用广泛,对于桥梁建筑施工的意义重大。但是在实际的桥梁施工工程的各个环节施工情况中,还存在着一些问题。后张法箱梁预制技术施工前准备不足,缺乏工程的实地考察,和对相关因素的考虑。此外,总体上后张法箱梁预制技术难度较大,施工人员水平较低,再加上整个桥梁施工的环节繁多,对施工现场的监督管理不严格。