| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of constructing a liquefaction countermeasure wall with which reduction in construction efficiency or increase of construction costs can be suppressed and effective liquefaction countermeasures can be taken, and the liquefaction countermeasure wall. <P>SOLUTION: A plurality of steel sheet piles 12... are pressed into a support ground 1 while surrounding a structure 5 by a press-in machine 20 to construct an underground wall 11, a casing is pressed into or rotationally pressed into a liquefaction layer 2 along with the steel sheet piles 12 and with the steel sheet piles 12 as a stress by the press-in machine 20. Drain materials 16... are thrown into the casing pressed into the liquefaction layer 2, the casing is then vertically moved or rotated by the press-in machine 20 to draw out the drain materials 16... while compacting them, thereby establishing a drain pile 15. A plurality of such drain piles 15 are disposed along a peripheral direction of the underground wall 11 so as to surround the structure 5. <P>COPYRIGHT: (C)2013,JPO&INPIT |
