盾构隧道加固用复合型材承载力计算方法研究  

Bearing Capacity Calculation Method for Shield Tunnel Reinforcing Filament Wound Profiles

作　　者：张磊[1] 柳献[1] ZHANG Lei;LIU Xian(Department of Geotechnical Engineering,Tongji University,200092,Shanghai,China)

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《城市轨道交通研究》2023年第5期169-176,共8页Urban Mass Transit

摘　　要：复合型材是一种应用于盾构隧道加固的新型结构材料,由碳纤维包裹空腔钢管后进行压力注浆形成。通过精细有限元数值模拟,定量分析了复合型材各性能参数的影响规律,明确了复合型材承载力指标的关键参数。在此基础上,推导了复合型材承载力的计算公式,并通过构件试验进行了有效性验证。Filament wound profiles(FWPs)is a new type of structural material used for shield tunnel reinforcement.It is formed by pressure grouting after the hollow steel pipe is wrapped by carbon fiber reinforced polymer.Through refined finite element numerical simulation,the influence law of different parameters of FWPs is quantitatively analyzed,and the key parameters of bearing capacity of FWPs are defined.On this basis,the bearing capacity calculation formulas of FWPs are derived and is validated by component experiment.

关 键 词：盾构隧道 加固 复合型材 承载力 敏感性分析 计算方法 

分 类 号：U457.3[建筑科学—桥梁与隧道工程]