PIPELINE SYSTEM USING PIPELINE JOINT

PROBLEM TO BE SOLVED: To reduce the number of joints and places where joints are connected, and improve construction efficiency for installation of pipeline.SOLUTION: A pipeline system includes: a U-shaped pipe joint part (first branch pipe) 21 at one end of which a first port 21a is disposed, and that has open holes r1, r2 branched into two from the first port 21a; a pair of branch pipes 22A, 22B that is disposed substantially parallely from branch ends 21b as both ends of the U-shaped pipe joint part 21, and has second ports 22b each communicating with the upper end of a tube. The pair of branch pipes (second branch pipe) 22A, 22B is disposed with an interval S, and provides a ground side joint 20 connecting the upper ends of two tubes buried in the ground with their axial directions facing a vertical direction.SELECTED DRAWING: Figure 4 【課題】継手数や継手接続箇所を少なくすることができ、配管の設置にかかる施工効率を向上させることができる。【解決手段】一端に第１口部２１ａが配設され、第１口部２１ａから二股に分岐された貫通孔ｒ１、ｒ２を有するＵ字管継手部（第一分岐管）２１と、Ｕ字管継手部２１の両端の分岐端２１ｂから略平行に配設されるとともに、それぞれがチューブの上端に連通する第２口部２２ｂを有する一対の分岐管２２Ａ、２２Ｂとを備え、一対の分岐管（第二分岐管）２２Ａ、２２Ｂ同士は、間隔（隙間Ｓ）をあけた状態で配設され、軸方向を上下方向に向けて地中に埋設される２本のチューブの上端同士を接続する地上側継手２０を提供する。【選択図】図４