An introduction is made on the construction process of artificial hole pile including holing, wall protection, fabrication and installation of reinforcing cage, pilecore concrete grouting etc.
介绍人工挖孔桩的成孔、护壁、钢筋笼制作和安装、桩芯混凝土浇灌等施工过程。
2
By contrast, core northern economies like Germany and the Netherlands started to pile up big surpluses, reaching highs of 7.6% and 9% of GDP respectively.
相对的是，北欧核心国家经济如德国和荷兰取得大量盈余，分别达到了GDP的7.6%和9%。
3
As this background, the article put forward research of incorporate design method for underground garage, and the most important core problem is rational design of uplift pile.