Construction method of culvert in embankment and culvert in embankment

摘要

PURPOSE:To execute banking in parallel with caisson work. CONSTITUTION:After footing 3 is deposited, rolled concrete is laid down around a predicted hollow part 4 without using any formwork and the concrete is uniformed. While it is rolled to raise a main body 2 in a layer shape, sediment is raised around areas where the main body 2 is already raised and at the hollow part 4 to complete a trapezoidal main body 2. After the main body 2 is completed, a banking 1 is completed and, after the hollow part 4 is excavated, spray concrete is immediately deposited. Thus, because the caisson and banking are worked in parallel with each other without using any formwork, the work period can be shortened and the work can be mechanized. Also, because the main body 2 is formed in trapezoidal shape, sufficient strength is given to it with rolled concrete only.