| 摘要 |
PROBLEM TO BE SOLVED: To constitute a solidifying material injection pipe to be cuttable together with a natural ground reinforcing pipe when excavating the natural ground and to facilitate carrying the solidifying material injection pipe into the field and installation into the natural ground reinforcing pipe. SOLUTION: The solidifying material injection pipe 1 for injecting a solidifying material into the natural ground reinforcing pipe 15 is formed by connecting, through pipe joints 7, a plurality of short pipes 2, 3, 4 formed of a hard material cuttable together with the natural ground reinforcing pipe 15. The solidifying material injection pipe 1 is formed in such a length that one end is inserted in the natural ground reinforcing pipe 15 and that the other end is pulled out of the natural ground reinforcing pipe 15. When excavating the natural ground, the solidifying material injection pipe 1 can be cut together with the natural ground reinforcing pipe and removed together with excavated sediment. Since the plurality of short pipes are sequentially connected through the pipe joints to form the predetermined length, carrying into the field and installation into the natural ground reinforcing pipe can be easily performed. COPYRIGHT: (C)2011,JPO&INPIT |
