| 摘要 |
PURPOSE:To enable to obtain a strong support power, by a method wherein, after a continuous row column wall is built by the use of soil cement piles, a steel pipe provided with an auxiliary pile for increasing a supporting power at the forward end is inserted while the continuous row column wall is in an unset state. CONSTITUTION:Soil cement piles A are driven in the shape of a circle to build a continuous row column wall B, and an auxiliary pile C' for increasing a supporting power consisting of division bodies 7, the number of which is equal to that of the soil cement piles A, is installed to a forward end of a steel pipe C. During the continuous row column wall B is in an unset state, the steel pipe C is lifted to erect it vertically so that the axis center of each soil cement pile A coincides with the peripheral wall of the pile C, and the pile is inserted by lightly tapping the head of the steel pipe C by means of a jack 10. This enables increase of adhering area of concrete or mortar, which results in displaying a strong supporting power. |
