shallow tunnel excavation

基本解释

The ground settlement of a shallow metro tunnel by excavation has important effect on the construction safety.
地铁隧道附近的施工活动，会影响到隧道的正常使用和结构安全。
Based on the safety analysis of urban subway tunnel by shallow excavation, the causation of hurting the safety is discussed. A set of indexes for safety valuation is presented.
笔者在总结浅埋暗挖法修建城市地铁隧道安全性问题基础上，分析了危害安全性的病害原因，提出了安全性评估指标；
The article introduces the construction technology of center drift method for shallow excavation tunnel in Beijing Metro Line 5, analyses the monitored data for the earths surface.
介绍了北京地铁5号线磁器口车站浅埋暗挖隧道中洞法施工技术，对地表监测数据进行了分析。