| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an existing old pipe regenerating construction method capable of dispensing with works for mounting and dismounting a mounting member of a back-filling material pouring nozzle and filling a back-filling material into a clearance between an existing old pipe and a lining pipe while confirming its filling situation. SOLUTION: A timbering device 1 is inserted into a lining pipe 3 newly provided in an existing old pipe 2, and an annular frame is supported in the lining pipe 3 by a support means 13. Three or more hollow rod bodies 141, 141', 141' are arranged in a row in the longitudinal direction of the lining pipe 3, their tips are inserted into a pouring hole of the lining pipe 3, a back-filling material supply hose 4 is connected to a connection end at a basic end of the hollow rod body 141 in an intermediate part, and basic ends of the front and rear hollow rod bodies 141', 141' are left open. The back-filling material is discharged from a back-filling material discharge port in the vicinity of a tip of the hollow rod body 141 in the intermediate part, and the back-filling material is filled into a clearance between the existing old pipe 2 and the lining pipe 3 while confirming its filling situation based on an outflow condition of the back-filling material from the basic ends of the front and rear hollow rod bodies 141', 141'.</p> |
