| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable self-sustaining stability even when there is no bracing wire and shore of an electric pole by installing a 'sheathed foundation' to the underground buried section of the electric pole. SOLUTION: A concrete secondary-product individual footing 2 resists load applied to the electric pole 1, and can be mounted simply on a field, and the electric pole can be self-sustaining stabilized without a bracing wire and a shore. Accordingly, there is no members other than an electric wire originally required for the electric pole, there are only the upstanding electric pole and the laterally stretched electric wire, and a neat landscape in human visual sense is obtained. A particularly conspicuous safety protective cover mounted on the foot of the bracing wire can also be removed, ground works regarding the electric pole reduce by half, and the fine appearance of houses gentle to persons is obtained. Cost is made lower than the removal of the electric poles to one several tenths, and a city landscape is improved as the result.</p> |
