| 摘要 |
PURPOSE:To increase the anchoring force of a bed seat, by a method wherein, after a pile having a projection for transmitting stress on its outer peripheral surface is inserted into a grout receiving part to penetrate it into a sea bottom ground, a grout press is attached to pour grout in the grout receiving part. CONSTITUTION:After a bed seat 1 is placed on a sea bottom foundation, a pile 3 is inserted along a pile driving guide and grout receiving part 2 serving as guide, and is penetrated through a pile hole 1a into a sea bottom ground. A grout retainer 5 is attached through a coupling pin 6 to the inner peripheral surface of the upper end of a cylinder part 2a of the grout receiving part 2. Grout 7 is poured and cured in the grout receiving part 2 to secured the pile 3 to the grout receiving part 2. This causes stress in both the pressing-in and pulling-off directions of the pile 3 to be transmitted by compressing the grout 7 between the grout press 5 and a projection 4 for transmitting stress on the outer peripheral surface of the pile 3, resulting in facilitation of transmission of high stress and in the possibility to reliably anchor the seat bed 1 to a sea bottom ground by means of the pile 3. |
