富水地层浅覆土小间距双线隧道盾构始发施工技术研究.pdf
建筑技术ConstructionDecoration
富水地层浅覆土小间距双线隧道盾构始发施工
技术研究
任皓
中铁十二局集团第二工程有限公司 山西 太原 030032
摘 要 为解决盾构机在富水地层浅覆土小间距始发安全风险高的问题，以特拉维夫红线轻轨项目为案例，研究开
发了盾构安全始发控制技术。本文首先通过剖析盾构始发控制技术原理，总结了工艺流程图，并对施工关键技术要
点进行阐述。其次对已成型隧道的变形监测数据进行分析，得出后掘进隧道对已成隧道影响较小的结论。本文从现
场效果、经济效益、工期质量和社会环保四个方面进行分析，证明盾构始发安全控制技术施工质量好，安全性能
高，节能环保，工效显著，值得推广。
关键词 富水地层；浅覆土小间距；盾构始发；变形监测
ResearchonShieldTunnelingTechnologyforSafeLaunchinShallowOverburdenwithSmall
SpacinginWater-RichStrata
RenHao
ChinaRailway12thBureauGroupSecondEngineeringCo.,Ltd.,Taiyuan030032,ShanxiProvince,China
AbstractToaddressthehighsafetyrisksassociatedwiththelaunchofshieldtunnelingmachinesinwater-richstratawith
shallowoverburdenandsmallspacing,shieldsafetylaunchcontroltechnologyhasbeendevelopedandresearchedusing
theTelAvivRedLineLightRailprojectasacasestudy.Thispaperfirstanalyzestheprinciplesofshieldlaunchcontrol
technology,summarizestheprocessflowdiagram,andelaboratesonthekeytechnicalpointsofconstruction.Secondly,by
analyzingthedeformationmonitoringdataoftheformedtunnel,itisconcludedthattheimpactofthelatertunnelingon
theexistingtunnelisminimal.Thepaperanalyzesfromfouraspects:fieldeffects,economicbenefits,constructionperiod
quality,andsocialenvironmentalprotection,provingthattheshieldlaunchsafetycontroltechnologyhasgoodconstruction
quality,highsafetyperformance,energysavingandenvironmentalprotection,andsignificantworkefficiency,whichisworth
promoting.
KeywordsWater-RichStrata;ShallowOverburdenSmallSpacing;ShieldLaunch;DeformationMonitoring
引言1 工程概况
当前，越来越多的城市隧道采用盾构法施工，其中盾构