| 摘要 |
PURPOSE:To prevent loosening of a ground and to effectively utilize drop energy of a weight, by a method wherein, when a ground is consolidated in a dynamic manner through drop of the weight, the weight for restraining a ground is previously placed around the drop point of the weight. CONSTITUTION:A weight 17 for restraining a ground having a hole, through which a weight 11 passes, is previously placed on the surface of a portion, where there is a possibility of a ground 15 being loosened, around a drop point 16 of a weight 11. Thereafter, the weight 11, lifted up by means of a crane 12, is released and dropped under gravity. This exerted impact on a ground surface 14 to transfer a compression force and an impact force generated by the weight of the weight 11 to the ground 15 to consolidate the ground 15. |
