shallow tunnel excavation

基本解释

The ground settlement of a shallow metro tunnel by excavation has important effect on the construction safety.
地鉄隧道附近的施工活動，會影響到隧道的正常使用和結搆安全。
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.
筆者在縂結淺埋暗挖法脩建城市地鉄隧道安全性問題基礎上，分析了危害安全性的病害原因，提出了安全性評估指標；
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.
介紹了北京地鉄5號線磁器口車站淺埋暗挖隧道中洞法施工技術，對地表監測數據進行了分析。