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1、隧道管棚施工作业指导书 urbantrafficstructureintheurbanpublictransportsystem,railtrafficwithafast,largecapacity,lowpollutionandhighefficiency,becomeanindispensablepartofurbantrafficstructure,isthecontradictionbetweensupplyanddemandofthegrowingmetropolis,cities,effectivemeanstomeettheneedsofurbantraffic.Thef
2、ollowingtableisarailtransportandothermodesofurbanpassengertransportcapacity,transportationspeedandresourceconsumption,andsoon.Comparisonofurbanpassengertraffiharacteristicstable5.1-2trafficvolume(human/h)transportspeed(km/people)Roadareaoupied(M2/people)scopebike2,00010-153,000shortcar20-5010-20w
3、idebus6,000-9,0001-240-600.25-0.5fromtheMetrolightrailof10,000-30,000inlong-distanceline3Morethan0,00040-60donotoupyanareabothintermsoftransportoverlongdistances,transportefficiency,orfromthelevelofresourceconsumptionandenvironmentalpollution,railtransportisundoubtedlyaneffectivemeanstosolvethepr
4、oblemoftrafficcongestionincities.Especiallyinurbanpopulationstrengthenormoustrafficdemandontheroutetoeasetrafficpressure,railtransportationhasincomparableadvantages.Washington,DC,areaof177km2,andapopulationof600,000,isaUnitedStatespoliticalcenter.FortheWashingtonMetrosystemUnitedStatessecond-busi
5、estsubway,secondonlytotheNewYorksubway,openedin1976.Currentrailsizesfor5,station86,total171.6km,netannualpassengervolumereached223millionpeople.Aordingtostatistics,from2000toxxvehicletripdown12.7%,bustravelhasincreasedby12%.ObjectivesoftheWashingtonMetrosystemboilsdowntothefollowingthreepoints:by
6、drivingontothetracksatthestationtransfermodeinordertoalleviatetrafficcongestion;Forthosewhowillnotorcannotdrivethepersonwithabetteroptionthanconventionalpublictransit;Blockhighway管棚施工作业指导书1目的明确隧道管棚施工作业的工艺流程、操作要点和相应的工艺标准，规范隧道管棚施工作业。 2编制依据⑴《客运专线铁路隧道工程施工指南》（TZ214-xx）⑵《客运专线铁路隧道工程施工质量验收标准》铁建设[xx]160号
7、⑶新建铁路XXXXXXXXXXXX高速铁路XXXXXXXXXXXX段《隧道工程设计施工图》3适用范围适用于XXXXXXXXXXXX高速铁路土建工程X标段隧道φ108长管棚施工作业。 4工艺流程及技术要求14.1管棚设计在隧道进出口明暗交界处设计洞口段长管棚。 设计参数①导管规格外径108mm，壁厚6mm；②管距环向间距40cm；③倾角外插角1°～3°为宜，可根据实际情况作调整；④注浆材料M10水泥砂浆；⑤设置范围拱部140°范围
