| 摘要 |
PROBLEM TO BE SOLVED: To prevent a backfill material from being solidified in a state of adhering into an injection pipe in a shield construction method, and to facilitate the solution of a trouble. SOLUTION: Backfill material injection equipment comprises: a base (5) which is composed of a backfill material supply pipe (3), a washing water supply pipe (2), and a junction pipe (4) of the supply pipes (2) and (3); a tube for injecting the backfill material which is connected to the junction pipe (4) and composed of an elastic flexible material such as rubber; a pushing rod (7) which abuts on one-side outer surface of the whole of other longitudinal areas, except a junction pipe connecting part, of the tube and which moves in the diametral direction of the tube so as to compress the tube into an airless state; and an operation mechanism (8) for moving the pushing rod in parallel between the uncompressed state and compressed state of the tube (6). COPYRIGHT: (C)2005,JPO&NCIPI
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