| 摘要 |
PURPOSE:To reduce working earth pressure, by arranging foamed blocks between an earth pressure working end surface and a structure. CONSTITUTION:Between an earth pressure working surface 4 inclined as a whole and the concrete blocks 1 of a sheathing structure, the foamed blocks 6 of the synthetic resin of the molded products of foamed polyethylene or the like are arranged to be put together longer in the horizontal direction as they are arranged on higher steps. Besides, between the foamed blocks 6 and the concrete blocks 1 cast is back-filling concrete 7. As a result, the concrete blocks 1 can be made thinner, and labor on the execution of work can be saved. |
