| 摘要 |
<p>PURPOSE:To improve workability and easily match the mutual position and height. CONSTITUTION:Rails 10 are provided on foundation concrete 9. Rail receiving members 5 slid on the rails 10 are provided on the base plate 4 of a box culvert 1. The box culvert 1 is mounted on the foundation concrete 9 while the rail receiving members 5 are matched with the rails 10, then the box culvert 1 is moved along the rails 10 and installed at the preset position. The box culvert 1 can be easily moved with smaller force as compared with the sliding of the base plate 4 of the box culvert 1 on the foundation concrete 9, and the mutual height and position of the box culvert 1 can be easily matched along the rails 10.</p> |
