| 摘要 |
PURPOSE:To penetrate a pile into the ground with a proper reaction and without bivration and noise by freezing the ground. CONSTITUTION:A reaction anchor pile 16 with a freezing pipe 17 having a connecting part 21 and an inlet 18 through which a refrigerant is injected on its upper part and a discharge port 19 on its lower part is penetrated into the ground G. The ground around the freezing pipe 17 is frozen by a refrigerant injected into the freezing pipe 17 to form a frozen ground, and the upper end of the reaction anchor pile 16 integrally combined with the frozen ground is utilized as a reaction point. When a refrigerant is passed into the freezing pile 17, the refrigerant is vaporized and its vaporization heat freezes the surrounding ground of the discharge port 19, and by the freezing expansion of the ground, the soil pressure around the discharge port 19 is increased. By this, the reaction anchor pile 16 is integrally combined with the surrounding frozen ground and also a reaction support can be obtained by the upper soil pressure. |
