METHOD OF REPAIRING POTTERY PIPE

摘要

PROBLEM TO BE SOLVED: To dispense with overbreak by joining end parts formed by cutting a repaired part, as spigots to both end sockets of a double receiving repair joint. SOLUTION: An excavated hole 66 is excavated to expose an existing pottery pipe, and the repaired part of the pottery pipe is cut. An upstream end part 30 and a downstream end part 48 are thereby formed at an existing pipeline. The upstream end part 30 is inserted in the first socket 18 of the double receiving repair joint 10, and the repair joint 10 is extended to insert the downstream end part 48 into the second socket 36. A joining material 74 is poured from a cutout 24 of the first socket 18 and a cutout 42 of the second socket 36 to join the existing pipeline to the double receiving repair joint. COPYRIGHT: (C)2005,JPO&NCIPI