单词盒子

bench excavation

B 开头单词

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。

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

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