RENOVATION COMPONENT FOR PUBLIC CATCH BASIN AND RENOVATION METHOD FOR PUBLIC CATCH BASIN

摘要

PROBLEM TO BE SOLVED: To provide a renovation component which allows a public catch basin to be renovated, hardly causing reduction in the volume of the catch basin.;SOLUTION: An invert portion renovating component 22 capable of renovating an invert portion 11 and a riser pipe portion renovating component 23 capable of renovating a riser pipe portion 12 are separately provided. The invert portion renovating component 22 is formed from a shape-changeable invert portion renovating component having a planar shape with a size approximately equal to or slightly smaller than the size of the invert portion 11, which can be deformed into a size enabling insertion from an upper opening part 14, having a changeable shape to virtually cover the invert portion. The riser pipe portion renovating component 23 is formed from a sheet-like component 25, which can be inserted from the upper opening part 14 in a rolled state, and can virtually cover the inner surface of the riser pipe 12 in a spread state.;COPYRIGHT: (C)2013,JPO&INPIT