第41卷第10期2023年10月文章编号：1009-7767（2023）10-0203-07Vol.41,No.10JournalofMunicipalTechnology0ct.2023D0I:10.19922/j.1009-7767.2023.10.203矩形顶管地铁车站同侧始发安全控制技术研究韩瑞林，孟毅欣*，宋寿忠(北京市政建设集团有限责任公司，北京100089)摘要：为保证矩形顶管在地铁车站同侧顺利始发，结合其狭小空间和异形后靠背的结构特点，以北京地铁昌平南延线上清桥站出入口矩形顶管施工为背景，通过数值模拟预测分析和实际工程控制措施总结，得到了完善的矩形顶管始发安全控制技术：钻孔灌注桩加钢支撑施工措施保证了始发井的结构稳定；后靠背浇筑混凝土填平后安装钢后靠，洞门土体加固以及导轨和止水钢环的安装等技术措施控制了施工安全风险，确保了矩形顶管的顺利始发。相关技术可为北京地区同类工程提供参考。关键词：地铁；矩形顶管；车站同侧始发；异形工作井；始发安全；土体加固中图分类号：U455.47ResearchonSafetyControlTechnologyofStartingfromtheSameSideatRectangularPipeJackingMetroStationHanRuilin,MengYixin*,SongShouzhong(BeijingMunicipalConstructionGroupCo.,Ltd.,Beijing100089,China)Abstract:Inordertoensurethesmoothlaunchoftherectangularpipejackingatthesamesideofthesubwaysta-tion,combinedwithitsnarrowspaceandthestructuralcharacteristicsofthespecial-shapedbackrest,therectan-gularpipejackingconstructionattheentranceandexitofShangqingqiaoStationofBeijingChangpingSouthExten-sionLinewastakenasthebackground.Bynumericalsimulationpredictiveanalysisandsummaryofactualengi-neeringcontrolmeasures,aperfectstartingsafetycontroltechnologyofrectangularpipejackingwasobtained,namelytheconstructionmeasuresofboredpileandsteelsupport,whichensuredthestructuralstabilityofthelaunchshaft;Technicalmeasures,suchastheinstallationofsteelbackrestafterbackbackrestfillingwithconcrete,soilreinforcementofthecavedoorandinstallationofguiderailsandwater-stopsteelrings,controlconstructionsafetyrisksandensurethesmoothlaunchofrectangularpipejacking.Relevanttechnologiescanprovidereferenceforsim-ilarprojectsinBeijing.Keywords:subway;rectangularpipejacking;departsatthesamesideofthestation;abnormalworkingwell;de-parturesafety;soilreinforcement文...
