MANHOLE JOINT CONNECTING STRUCTURE

PROBLEM TO BE SOLVED: To provide manhole joint connecting structure that can connect a conduit and a protective pipe for inserting an optical fiber cable, a communication cable, or the like through, easily and positively to the side wall of a manhole in the case of burying the optical fiber cable, communication cable, or the like in the ground. SOLUTION: The other end of an outer pipe having a diameter enlarged socket at one end is closed with a flange 3, and an inner pipe 4 is provided inside the outer pipe, piercing the flange 3 to form a manhole joint A. In this case, the flange side of the manhole joint A is inserted in a connecting hole 51 bored in a side wall 5 of a manhole, and joint material such as cement or mortar is filled in a clearance between the outer peripheral surface and the wall surface of the connecting hole 51 to joint. A protective pipe 6 is connected to the diameter enlarged socket of the outer pipe, and a conduit 7 is connected to the inner pipe 4 provided inside the outer pipe.