METHOD OF CONSTRUCTING CONCRETE WIER BODY

PURPOSE:To safely and easily build a weir body, by a method wherein concrete caissons, each having man-holes vertically and horizontally communicated with each other, are vertically, horizontally and longitudinally assembled together, and the caissons are tightened together by the use of a tightening steel wire interposed through each caisson. CONSTITUTION:A concrete caisson body 1 is formed in a regular hexahedron, and a man hole 8, through which an upper surface 2 and an under surface 3 are vertically intercommunicated, and a man hole 9, through which left are right sides 4 and 5 are horizontally intercommunicated, are bored. After a weir body foundation 34 is built, the caisson bodies 1 are vertically, horizontally, and longitudinally assembled up between a right shore 33 and a left shore 34. In which case, tightening steel wires are inserted through insertion holes 11-18 bored in their respective directions in the caisson body 1, and tightening is performed by means of notches 11a-18a and 11b-18b by the use of connection metals. In this case, said work is carried out through utilization of the man holes 8 and 9 formed in the caisson body 1. Further, after completion of assembly, the man holes 8 and 9 are filled with concrete or used as a piping passage.