| 摘要 |
PROBLEM TO BE SOLVED: To provide a pile foundation structure in which a positional relation between a pile and a construction can be adjusted in orthogonal two directions of a horizontal direction and the construction can be installed on the ground easily and accurately at a predetermined height level.SOLUTION: A pile foundation structure 10 for a base member 3 of a solar panel installation frame that is a construction to be installed on the ground comprises a pile 11 and a horizontal direction adjustment member 15. In the pile 11, a spiral blade 20 is provided on an outer circumferential surface of a portion which is intruded to the ground, the spiral blade 20 is threaded into the ground, and a head of the pile 11 is exposed on a surface of the ground. The horizontal adjustment member 15 is interposed between the head of the pile 11 and the base member 3 and is capable of adjusting a positional relation between the pile 11 and the base member 3 in horizontal orthogonal two directions. Between the pile 11 and the horizontal direction adjustment member 15, screw-type height adjustment means 14 is provided which includes a male screw rod 12 erected and fixed in the head of the pile 11, and a lifting member 13 provided with a lifting nut 25 into which the male screw rod 12 is threaded. |
