| 摘要 |
PROBLEM TO BE SOLVED: To prevent a buried pipe for cable protection from being positionally slipped at the time of placing concrete in construction of an electric dolly type sliding gate to disable connection of an electric pole or sensor pole with a cable. SOLUTION: A guide rail 4 having an electric pole positioning tool 5 set in a longitudinal middle part thereof and a sensor pole positioning tool 7 set at both longitudinal ends in an integrated manner is temporarily arranged in a concrete placing drilled hole, longitudinal ends of the buried pipe 9 for cable protection temporarily arranged in the same manner are inserted to and retained in buried pipe insert holes 52 and 72 of the tools 5 and 7, and foundation concrete 8 is then placed into the drilled hole to fix the guide rail 4. Positional deviation of the buried pipe 9 can be solved by the buried pipe retaining function of the tools 5 and 7, and the construction of a sliding gate A can be facilitated. COPYRIGHT: (C)2008,JPO&INPIT
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