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docx 2009年一级建造师《公路工程管理与实务》考试真题及答案解析

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200996日一级建造师公路工程专业考试试题

  一、单选题(1×20=20 分)

  1、 某一级公路,面层为沥青混凝土 AC‐16,基层为二灰碎石土,在面层与基层间铺设(  )。
  A.粘层
  B.透层
  C.反滤层
  D. 垫层

  2、某坚石路堑紧邻一座高压线铁塔,其最佳开挖方法是(  )。
  A.薄层钻爆开挖
  B.带松土器的重型推土机破碎开挖
  C.分层钻爆开挖
  D.静态破碎开挖

  3、某路基换填施工,换填深度为 2m,地下水位为地面以下 1.8‐2.0m,含水层以下为非 透水层,为降低和拦截地下水,在换填边界处宜设置(  )
  A.渗井
  B.急流槽
  C.蒸发池
  C.填石渗沟

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