WIRING METHOD TO CROSSING PIPE IN FLUID PIPELINE, AND WIRING METHOD OF COMMUNICATION LINE FOR WORK WITH WORK BODY ATTACHED TO PORTION THEREOF, AS WELL AS DEVICE FOR USE IN THE METHOD

PROBLEM TO BE SOLVED: To dispose a communication line without damaging a pipe port in a crossing pipe of an inverted siphon part of a sewer pipeline, and reliably perform the work of measurement of deposits in the crossing pipe or cleaning, etc., through the communication line.SOLUTION: A pipe port protection part comprising a bent part is provided in the lower end, and a rail material with a guide path of the communication line formed in the longitudinal direction is set up along the wall surface of the vertical hole facing each other while making the pipe port protection part face the pipe port of the crossing pipe, and the communication line (wire) is disposed along the rail material. Then, a predetermined tension is introduced into the communication line by a winch of a ground part, and moved along a work body to perform the work. 【目的】 下水道管路の伏越し部の横断管に管口を損傷することなく通線を配し、該通線を介して横断管内の付着物の計測、清掃等の作業を確実になすこと。【構成】 下端に曲がり部からなる管口保護部を有し、長手方向に通線の誘導路が形成されたレール材を、該管口保護部を横断管の管口に臨ませるとともに相対する立孔の壁面に沿って立設し、このレール材に沿って通線（ワイヤー）を配する。その後、地上部のウインチにより通線に所要の張力を導入し、作業体とともに移動させて作業を行う。【選択図】 図１