摘要
为保证施工中电缆隧道运营安全,通过采用岩土工程有限元分析软件对某车行隧道基坑工程跨越既有电缆隧道的管节位移、管节间相对位移和相对转角等变形进行分析,并与实测数据进行对比,证明设计选用的开挖方式和对电缆隧道周边土体进行预加固的方案对保证既有电缆隧道正常运营和减小施工过程中的风险是有效的。本案例的设计施工经验为同类工程的设计施工提供了借鉴和参考。
The article analyzed the influence of vehicle tunnel foundation pit excavation of an adjacent electric power tunnel,which include the tube displacement,inter-tubular displacement and rotation angle.Compared with the measurements,the calculation results showed that the excavation method and pre-strengthening of the soil were safe and reasonable.To ensure the safety of the electric power tunnel,the article also put forward a series of strengthening measures and emergency plans.The design schemes and analysis results could be referred for the similar projects.
作者
刘宇晨
胡燊
李文涛
Liu Yuchen;Hu Shen;Li Wentao(Guangzhou Municipal Engineering Design and Research Institute,510060,China)
出处
《特种结构》
2019年第3期47-50,共4页
Special Structures
关键词
隧道基坑
数值模拟
影响分析
Vehicle tunnel foundation pit
Numerical simulation
Influence analysis
