摘要
为了对南阳山隧道路面底鼓病害进行整治,在充分查阅原设计、施工、养护历史资料的基础上,通过现场调查、专项检测、实时变形监测等方法对隧底结构进行了全面检测。结果表明,隧道病害是隧底围岩劣化、自身结构缺陷叠加所致;监测数据揭示了隧道既有病害的发展趋势,据此提出微型钢管桩与型钢混凝土底板仰拱加固整治措施。后期追踪表明,该措施实施效果良好,有效解决了路面底鼓病害。
In order to treat the floor heave of Nanyangshan tunnel,based on the full review of the original design,construction and maintenance history data,the tunnel bottom structure was thoroughly inspected by on-site investigation,special inspection and real-time deformation monitoring.The results show that the disease was caused by the deterioration of surrounding rock at the bottom of the tunnel and the structural defects of the tunnel.The monitoring data reveals the development trend of the existing disease of the tunnel,based on which the reinforcement measure for inverted arch with the miniature steel pipe pile and the steel reinforced concrete floor was proposed.The tracking shows that the treatment measure effectively solves the problem of floor heave.
作者
冯勇
朱小明
蒲建军
FENG Yong;ZHU Xiao-ming;PU Jian-jun(Gansu Province Transportation Planning,Survey and Design Institute Co.,Ltd.,Lanzhou 730030,Gansu,China;Gansu Changlong Highway Maintenance Technology Research Institute Co.,Ltd.,Lanzhou 730030,Gansu,China)
出处
《筑路机械与施工机械化》
2019年第12期70-73,共4页
Road Machinery & Construction Mechanization
基金
甘肃省科技支撑计划(144GKCA026)。
关键词
隧道工程
路面底鼓
仰拱加固
整治措施
tunnel engineering
floor heave
inverted arch reinforcement
treatment measure
