| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground liquefaction prevention and consolidation method having both the functions of strong support on a ground and drainage.SOLUTION: Blocking rods 14 each of which is housed in a casing 10 and is equipped with a drilling bit 14c at its tip and the casings 10 are rotated and pressed into a ground 1 to form drilled holes. After the drilled holes are formed, the blocking rods 14 are pulled out from the casings 10, crushed stones 2 are charged into each of the casings 10, and the charged crushed stones 2 are rolled by a rolling rod 11 and pressed out from the casing to form a foot protection part 3A. A hoop-shaped belt 21 is inserted into the casing 10 and installed above the foot protection part 3A, the casing 10 is pulled out from the drilled hole, the crushed stones 2 are newly charged into a hollow part of the installed hoop-shaped belt 21, and the crushed stones in the hoop-shaped belt 21 are rolled by the rolling rod to form a crushed stone pillar 3. |
