钢波纹管涵施工工艺及技术要求

让我们看到了如何去做才叫坚定了理想信念，如何去做才算做到了奉献、坚守，做到了一名优秀共产党员应该做到的。rationalconcepttoallownetworkmoreinlinewiththeobjectivelawsofthefuturedevelopmentofthecity.1.5.2planningresearchareas:throughoutthecity,withanareaof13,000km2,cover2districtsand8countiesofthecity,includingdowntownandcitylevels.Planningrange:mainforCityCenterCity,areafor1268km2,NorthtocasesfieldXiang,andJinPingzhen,andGaoDianZhen,andhuangshazhen,andLiuhometownNorthTownshipterritories,EastNanXIZhen,andJiangnanEastTownshipterritories,Southtohorsehome,andsonghome,andLiZhuangZhen,andSouthwidetown,andZhaofieldStreetdoSouthadministrativeborder,Westtobaixizhen,anddishdamtown,andthoughtslopeXiangWestTownshipterritories.1.6planningtarget1.6.1GeneraltargetthisitemsresearchtowillYibincitybuiltYangtzeRiverupstreamchuanYunnanGuizhoucombinedDepartmentRegionalCenterCity,supportcityspaceoforderedexpandfortarget,referenceYibincityintegratedtrafficplanning(2014-2030years)andtheYibinCityCitygeneralplanning(2013-2030years)ofresearchresults,usingscience,andadvancedofnetworkresearchmethod,buildingmorelevel,andmoremodeoftracktrafficsystem,Meetatdifferentlevelsofthecity'srailtransportationneedsandqualityrequirements.1.6.2target1,refinedurbandevelopmentaxisofurbandevelopmentconcepts,judgments,rail-guideddowntownfromsolotogroup-developmentofthenetwork,fromoneCentertocentercitywithaxialdevelopment.2,networkplanningadaptedtoYibinCitystatusandfuturedevelopmentneeds,demonstratesrationalscaleofrailtransporttomeettheneeds钢波纹管涵施工工艺及技术要求1概述钢波纹涵管（YTHG）是替代圆管涵、盖板涵、拱涵和小桥的优质公路建材。该产品具有工期短、重量轻、安装方便、耐久性好、工程造价低、抗变形能力强、减少通车后养护成本等特点，尤其应用在高寒冻土地区，软土路基地带，具有明显的经济效益。本项目的钢波纹涵管为C型波，进出口按照边坡比例做成八字翼墙，波纹管管径Φ2.5米的双孔涵和Φ2米的单孔涵，管壁厚度为5.5mm。填土高度为14.5m～32.2m。2钢波纹管涵路基施工技术要求2.1挖基修建钢波纹管涵，一般要在天然地面或经严格夯实的填土上先挖掘埋设管道的沟槽。挖槽宽不但应方便管侧填土的夯填，而且还应满足设计上需要的基础宽度。施工经验表明，在填土不高路段上修建涵洞，以采用先填路基，然后再开挖沟槽埋设涵管的方法为好。钢波纹管地基或基础要求均匀又坚固，同时，还应具有耐久性。让我们看到了如何去做才叫坚定了理想信念，如何去做才算做到了奉献、坚守，做到了一名优秀共产党员应该做到的。rationalconcepttoallownetworkmoreinlinewiththeobjectivelawsofthefuturedevelopmentofthecity.1.5.2planningresearchareas:throughoutthecity,withanareaof13,000km2,cover2districtsand8countiesofthecity,includingdowntownandcitylevels.Planningrange:mainforCityCenterCity,areafor1268km2,NorthtocasesfieldXiang,andJinPingzhen,andGaoDianZhen,andhuangshazhen,andLiuhometownNorthTownshipterritories,EastNanXIZhen,andJiangnanEastTownshipterritories,Southtohorsehome,andsonghome,andLiZhuangZhen,andSouthwidetown,andZhaofieldStreetdoSouthadministrativeborder,Westtobaixizhen,anddishdamtown,andthoughtslopeXiangWestTownshipterritories.1.6planningtarget1.6.1GeneraltargetthisitemsresearchtowillYibincitybuiltYangtzeRiverupstreamchuanYunnanGuizhoucombinedDepartmentRegionalCenterCity,supportcityspaceoforderedexpandfortarget,referenceYibincityintegratedtrafficplanning(2014-2030years)andtheYibinCityCitygeneralplanning(2013-2030years)ofresearchresults,usingscience,andadvancedofnetworkresearchmethod,buildingmorelevel,andmoremodeoftracktrafficsystem,Meetatdifferentlevelsofthecity'srailtransportationneedsandqualityrequirements.1.6.2target1,refinedurbandevelopmentaxisofurbandevelopmentconcepts,judgments,rail-guideddowntownfromsolotogroup-developmentofthenetwork,fromoneCentertocentercitywithaxialdevelopment.2,networkplanningadaptedtoYibinCitystatusandfuturedevelopmentneeds,demonstratesrationalscaleofrailtransporttomeettheneeds本项目的涵管处于软地基上，当涵管处于软土地基上时，需对软土路基进行处理，然后，采用级配良好的砂砾，砂砾基础下采用50cm水泥稳定石灰土（3:8重量比），7d抗压强度不小于0.6Mpa。基础应采用振动压实机械进行分层碾压，压实度不小于96%；管底楔形部分可采用小型夯实机械斜向夯实。3回填土(1)涵管两侧回填应采用砂砾或与路基填料相同的材料。(2)涵管两侧回填应对称施工，分层回填，每层厚度为10cm。天然砂砾基础压实后压实度不得小于96%。(3)涵管两侧近处用机械夯实，管底下方粗砂用“水密法”震荡器振实。(4)涵管两侧回填应采用振动夯实机逐层夯实。密实度不小于96%。(5)涵管上方当回填土厚度0-0.5m采用人工夯实；0.5-1.0m采用轻型静载压路机静压，压实度不小于96%，沙砾中含泥量不大于5%，最大粒径不超过5cm。3.1端面（1）浆砌片石必须错缝砌筑。（2）为避免因波纹管变形引起的端墙开裂，波纹管安装就位完毕后，可以将两端端墙砌至波纹管直径一半就不再砌筑，剩余未砌筑的部分片石可以排列两排沙袋来挡土，等到波纹管管顶填土填至路基最大设计标高十五日后再将沙袋清理掉砌筑上下游的端墙。4波纹管安装操作规范内蒙古准兴重载高速公路第A9合同段让我们看到了如何去做才叫坚定了理想信念，如何去做才算做到了奉献、坚守，做到了一名优秀共产党员应该做到的。rationalconcepttoallownetworkmoreinlinewiththeobjectivelawsofthefuturedevelopmentofthecity.1.5.2planningresearchareas:throughoutthecity,withanareaof13,000km2,cover2districtsand8countiesofthecity,includingdowntownandcitylevels.Planningrange:mainforCityCenterCity,areafor1268km2,NorthtocasesfieldXiang,andJinPingzhen,andGaoDianZhen,andhuangshazhen,andLiuhometownNorthTownshipterritories,EastNanXIZhen,andJiangnanEastTownshipterritories,Southtohorsehome,andsonghome,andLiZhuangZhen,andSouthwidetown,andZhaofieldStreetdoSouthadministrativeborder,Westtobaixizhen,anddishdamtown,andthoughtslopeXiangWestTownshipterritories.1.6planningtarget1.6.1GeneraltargetthisitemsresearchtowillYibincitybuiltYangtzeRiverupstreamchuanYunnanGuizhoucombinedDepartmentRegionalCenterCity,supportcityspaceoforderedexpandfortarget,referenceYibincityintegratedtrafficplanning(2014-2030years)andtheYibinCityCitygeneralplanning(2013-2030years)ofresearchresults,usingscience,andadvancedofnetworkresearchmethod,buildingmorelevel,andmoremodeoftracktrafficsystem,Meetatdifferentlevelsofthecity'srailtransportationneedsandqualityrequirements.1.6.2target1,refi