| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of liquefaction phenomenon during an earthquake by a method wherein rolling compaction of a reclaimed land is carried out simultaneously from an upper surface and sides in water, underground water is squeezed, and a penetration water channel is disconnected. SOLUTION: This working ship is provided with a nipping means to hold a steel rod 1-1 and oscillate and be fitted in the steel rod and longitudinal move a steel rod; and a slide box 1-2 at which the nipping means is fixed and which is horizontally reciprocated by a power. The slide box is horizontally reciprocated as the steel rod is longitudinal moved with the steel rod inclined. A vertically movable earth removing bottom plate 4-3 is disposed in front of a strength propulsion ship 1 to propel a hull by synthesizing the moving force of the steel rod and the moving force of the slide box. Earth is directly pushed according to the point equivalent to that of a bulldozer on a ground and gathers the earth, which is carried out to a destination. During reclamation with earth, lateral rolling compaction from a position in water is effected simultaneously with rolling compaction on a ground.
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