bench excavation

基本解释

• 台阶式挖掘

英汉例句

双语例句

• The bench excavation of combining short-hole with deep-hole blasts was adopted.
  采用了浅孔和中深孔爆破相结合的台阶开挖方法。
• In the excavation of foundation pit and foundation bench in shallow aquifer area, the problem of dewatering will be involved.
  在含水层较浅的地区开挖基坑及基槽，都涉及到降水问题。
• The construction technique of deep-hole bench blasting and presplitting blasting applied for excavation of Dadingzhishan Lock engineering is described.
  介绍大顶子山船闸工程闸塘石方开挖中深孔梯段爆破、预裂爆破施工技术。

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词组短语

短语

• rock bench excavation 岩台开挖
• heading and bench excavation 导洞与台阶开挖
• top heading and bench excavation 上下台阶开挖
• Tri -bench excavation method 三台阶开挖法
• three -bench seven-step excavation method 三台阶七步开挖法

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专业释义

交通运输工程

• 台阶开挖

  On the upper bench excavation, the length is about 6-8m in vertical direction which the fractured zones is affected by blasting vibration.
  上台阶开挖时,爆破振动对松动区的影响在纵向开挖距离约为6-8m,松动区稳定后厚度约为2.2m;而在下台阶开挖时,这个距离增大为8-10m。

  动力与电气工程

• 台阶开挖