| 摘要 |
PURPOSE:To obtain quickly a foundation pile by a method in which an inversed conical form of pit is formed and a filler is packed into the pit and hardened. CONSTITUTION:A pit 16 is excavated and expanded into an inversed conical form to form an inverted conical form of pit 17. A filler 8 is packed into the pit 17 and hardened to form a pile. A high-quality foundation pile can thus be quickly obtained at low cost without needing the conventional large-scale machine.
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