shallow tunnel by 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；
It may avoid stopping transportation and polluting city environment to have excavation in the open replaced by shallow-concealed excavation for large scale underground cable tunnel construction.
采用浅埋暗挖法施工地下电缆隧道取代明沟开挖法，可避免阻断交通、污染城市环境。