PROBLEM TO BE SOLVED: To improve the workability in the case of construction of a structure using a rod-like construction foundation material provided with a plurality of buckling materials capable of buckling on the tip end side in the placement direction.;SOLUTION: A construction foundation material 10 is a construction foundation material to be driven into a structure. A buckling member 30 comprises a plurality of buckling materials 31 and 35 which can be compressed and buckled between first to fourth plates 60, 70, 80 and 90. A rod 20 is a hollow rod-like member for restricting a movement of the second plate 70 and the fourth plate 90 to an opposite side in a placing direction, the second plate 70 and the fourth plate 90 are fixed to an outer periphery, and the rod comprises a male screw member 21 on the outer periphery of the tip. A steel pipe 40 is a hollow rod-like member through which a part on a tip end side of the rod 20 is slidably inserted, the first plate 60 and the third plate 80 are fixed to an outer periphery, and the steel pipe comprises a female screw member 42 screwed to the male screw member 21 and a female screw member 41 screwed to a male screw member 51 at a tip end of a PC steel rod 50 at a tip end.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
展开▼
