| 摘要 |
PURPOSE: A flooring box bridge is provided to prevent a water channel from being blocked by separating an upper plate in case of a landslide and to allow floating matters to flow to the water channel at normal times. CONSTITUTION: A flooring box bridge comprises a box. The upper plate of the box is fixed to bridge piers(110) of a box bridge(100) and can be separated from the bridge piers by the pressure of flowing matters in the box bridge. The box bridge has first protrusions(101) inserted into grooves formed on the upper plate. Flooring grooves(102) and flooring protrusions(103) are formed on the top of the piers. Second protrusions(201) are formed in the upper plate of the box and are placed on the flooring grooves. |
