bench excavation

基本解釋

• 臺階式挖掘

英漢例句

雙語例句

• The bench excavation of combining short-hole with deep-hole blasts was adopted.
  采用了淺孔和中深孔爆破相結(jié)合的臺階開挖方法。
• 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(qū)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.
  介紹大頂子山船閘工程閘塘石方開挖中深孔梯段爆破、預裂爆破施工技術(shù)。

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詞組短語

短語

• rock bench excavation 巖臺開挖
• heading and bench excavation 導洞與臺階開挖
• top heading and bench excavation 上下臺階開挖
• Tri -bench excavation method 三臺階開挖法
• three -bench seven-step excavation method 三臺階七步開挖法

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專業(yè)釋義

交通運輸工程

• 臺階開挖

  On the upper bench excavation, the length is about 6-8m in vertical direction which the fractured zones is affected by blasting vibration.
  上臺階開挖時,爆破振動對松動區(qū)的影響在縱向開挖距離約為6-8m,松動區(qū)穩(wěn)定后厚度約為2.2m;而在下臺階開挖時,這個距離增大為8-10m。

  動力與電氣工程

• 臺階開挖