第1页共4页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第1页共4页穿黄河隧洞泥水盾构施工技术研究提要:南水北调中线工程穿黄河输水隧洞具有断面大、地层条件差、一次推进距离长等特点
经多方案比选论证,推荐采用泥水加压式盾构施工
开挖面稳定通过采用自动控制系统动态调整泥浆性能和输送等各项指标、并加强施工监测来实现;壁后注浆采用双液同步注浆技术;进出洞段加固采用高喷和化学注浆技术
关键词:穿黄河隧洞泥水盾构注浆技术南水北调中线Abstract:InthemiddlerouteofS-to-NWaterTransferProject,thecross-Yellow-Rivertunneltookonthecharacteristicsofgreattransect,poorstratumconditionandlongtunnellingdistance
Slurryshieldmachinewasrecommendedfromsomeschemes
Inordertokeepthestabilizationofworkingface,auto-controlsystemwasusedtoadjusttheperformanceofslurry,andcorrespondingmonitoringwasnecessaryduringconstructing
Thetechnologyofgroutingsynchronouslywithtwokindsofliquidwasappliedinbackfillgrouting
Thetechnologiesofjetgroutingandchemicalmaterialgroutingwereappliedinreinforcingtheinletandexitofthetunnel
Keywords:thecr