超大直径盾构机空推通过暗挖隧道施工技术.pdf
云南水力发电第39卷
200YUNNANWATERPOWER第9期
超大直径盾构机空推通过暗挖隧道施工技术
韩鹏,程军振,杨松霖,马玉成
(中国水利水电第十四工程局有限公司,云南 昆明 650041)
摘要:近年来,盾构法施工技术在地铁施工中得到广泛的应用和推广。在施工过程中,往往因为地质条件、站厅设置及地铁运行等
外界因素,盾构法隧道施工存在不连续性,中间需要采用明挖或暗挖法施工。在明挖及暗挖隧洞中,盾构机如何快速、安全、节省成
本的情况下通过空推段施工,为盾构机下步施工提供条件,成为盾构机空推的关键和首要任务。依托成都轨道交通19号线二期工程区
间盾构机空推方案实施为依托,介绍超大直径盾构机依据自身推力+预留孔洞的方式空推通过矿山法暗挖隧道施工技术。
关键词:超大直径;盾构机;暗挖隧道;空推施工技术;预留孔洞
中图分类号:U455 文献标识码:B 文章编号:1006-3951(2023)09-0200-03
DOI:10.3969/j.issn.1006-3951.2023.09.041
ConstructionTechnologyofSuperLargeDiameterTunnelBoringMachine
throughUndergroundExcavationTunnelbyAirPushing
HANPeng,CHENGJun-zhen,YANGSong-lin,MAYu-cheng
(POWERCHINASINOHYDROENGINEERINGBUREAU14CO.,LTD.,Kunming650041,China)
Abstract:Inrecentyears,shieldtunnelingconstructiontechnologyhasbeenwidelyappliedandpromotedin
subwayconstruction.Duringtheconstructionprocess,duetoexternalfactorssuchasgeologicalconditions,
stationhallsettings,andsubwayoperation,thereareoftendiscontinuitiesinshieldtunnelingconstruction,which
requirestheuseofopenorconcealedexcavationmethodsinthemiddle.Inopenandundergroundtunnels,how
toquickly,safely,andcost-effectivelycarryouttunnelboringmachinethroughtheairpushingsectiontoprovide
conditionsforthenextconstructionoftheshieldmachinehasbecomethekeyandprimarytaskoftheshield
machinesairpushing.Basedontheimplementationoftheshieldtunnelingmachineairpushingschemeinthe
secondphaseofChengduMetroLine19Project,thispaperintroducestheconstructiontechnologyofsuperlarge
diametershieldtunnelingmachinesusingminingmethodandunderg