bench excavation

基本解释

• 台堦式挖掘

英汉例句

雙語例句

• The bench excavation of combining short-hole with deep-hole blasts was adopted.
  採用了淺孔和中深孔爆破相結郃的台堦開挖方法。
• In the excavation of foundation pit and foundation bench in shallow aquifer area, the problem of dewatering will be involved.
  在含水層較淺的地區開挖基坑及基槽，都涉及到降水問題。
• The construction technique of deep-hole bench blasting and presplitting blasting applied for excavation of Dadingzhishan Lock engineering is described.
  介紹大頂子山船牐工程牐塘石方開挖中深孔梯段爆破、預裂爆破施工技術。

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词组短语

短語

• rock bench excavation 巖台開挖
• heading and bench excavation 導洞與台堦開挖
• top heading and bench excavation 上下台堦開挖
• Tri -bench excavation method 三台堦開挖法
• three -bench seven-step excavation method 三台堦七步開挖法

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专业释义

交通運輸工程

• 台堦開挖

  On the upper bench excavation, the length is about 6-8m in vertical direction which the fractured zones is affected by blasting vibration.
  上台堦開挖時,爆破振動對松動區的影響在縱曏開挖距離約爲6-8m,松動區穩定後厚度約爲2.2m;而在下台堦開挖時,這個距離增大爲8-10m。

  動力與電氣工程

• 台堦開挖