| 摘要 |
PURPOSE:To contrive the dispersion of thrust by embedding embedding-pipe bodies along curved embedding holes, and by fitting the single body or a plurality of the bodies combined with each other, of the thrust transmitting material of a plasticity range different according to the thrust, on the end surfaces of the respective embedding pipe bodies, to be propelled in the shape of a curve. CONSTITUTION:On the outer peripheral section of the socket section of embedding pipe bodies 5, a steel collar 7 is fitted, and on the end surfaces 6 of the pipe bodies, the plural kinds of the foam material of the thrust transmitting material 1 of high corrosion-resistance are fitted. Then, the foam material consists of foam styrene, foam polystyrene, and the like, and depending on foam magnification, elastic limit compressive-stress is different, and the material 1 consists of foam material 2 by 3 times, foam material 3 by 2.5 times, and foam material 4 by 2 times, respectively. Then, by using this characteristic, for the embedding pipe bodies 5 of slight thrust sections, the thrust transmitting materials 2, 3 are selected, and for the increased thrust section, the thrust transmitting materials 3, 4 are selected. Then, according to the thrust, the materials are used to be combined with each other. As a result, the allowable load resisting force of the embedding pipe bodies 5 can be effectively used. |
