| 摘要 |
PURPOSE:To eliminate deficiency in size due to an uneven face of slope, by a method wherein forms for face of slope are installed by means of a coupling pin in which nuts are screwed on each end, having a thread, of an H-type bolt, and the forms are coupled in order. CONSTITUTION:A thread is formed at each end part of a bolt 2 formed in an H-shape, plural nuts 1 are screwed on each thread part to form a coupling pin. Formation of slope forms by a cast-in-place concrete method is such that forms 10, being foldable by means of a hinge 3, are installed on a face of slope, the end of the coupling pin is inserted into a coupling hole 5 in the forms 10 to secure it by means of the nuts 1, and the forms 10 are coupled, in order, to place concrete. After concrete is cured, the forms 10 are removed, and the coupling pin is left buried. This eliminates difficiency in size due to an uneven face of slope with the aid of the coupling pin formed with the H-type bolt 2. |
