In accordance with the formula of thickness of support wall of ring-shaped excavated pile, the electronic calculation program of the thickness is programmed.
2
对人工挖孔桩的护壁受力状态进行分析，并结合工程实例，证明砖护壁的安全性和可靠性。
According to stress analysis of breast wall in man-made Pile and some example, we prove that the breast wall of brick is secure and reliable.
3
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。
An introduction is made on the construction process of artificial hole pile including holing, wall protection, fabrication and installation of reinforcing cage, pile core concrete grouting etc.
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