| 摘要 |
PROBLEM TO BE SOLVED: To provide a connection structure for a ditch drain unit that may easily correct twisted parts in a water channel and collapsed front and rear walls of the drain ditch unit at site, and maintain the corrected state for configuring a water cut-off structure that connects water channels without deviation.SOLUTION: On a side edge of a water channel 12, an edge side of a roughly L-shaped steel connecting plate 26 is welded, both side edges being of a same shape, and an L-shaped hooked part 24 is protruded leaving a prescribed interval 23 with the side edge, letting the water channel side open. The water channels 12 are connected by fitting the side edges to the connecting plate 26 so that the water channel edges are butted to each other, and then fixing by driving a wedge 27 into the gap 23 at the hooked part 24 on both sides of the water channels 12. |
