PIPE CONNECTING STRUCTURE OF A MANHOLE CAPABLE OF CONNECTING A DRAINPIPE TO A PIPE CONNECTING HOLE OF A MANHOLE USING A PIPE CONNECTOR OR CONNECTING A DRAINPIPE DIRECTLY TO A PIPE CONNECTING HOLE OF A MANHOLE

摘要

PURPOSE: A pipe connecting structure of a manhole is provided to prevent the lowering of watertightness by the damage on cement mortar caused by external conditions such as the uplift or subsidence of the ground and to simplify a construction work by fixing a drainpipe to a pipe connecting hole of a manhole using a pipe connector, or fitting a drainpipe directly to a pipe connecting hole of a manhole, then fixing a joint unified with a drainpipe to a side wall of a manhole. CONSTITUTION: The pipe connecting structure of a manhole comprises the steps of fixing a cylindrical part(23) of a pipe connector(21) composed of synthetic resins to a pipe connecting hole(13) of a manhole(11), filling up a gap between the cylindrical part and the pipe connecting hole with cement mortar(15), fixing a joint unit(25) of the cylindrical part of the pipe connector to a side wall of a manhole by an anchor bolt(27), placing a primary water-stopping packing(29) to a concave groove of the joint unit, fixing a drainpipe(31) composed of synthetic resins to a cylindrical part(23) of the pipe connector, placing a secondary water-stopping packing(33) between the front internal circumference of the cylindrical part and the drainpipe, and fastening a clamp(37) fixed with a third packing(39) to a fastening part(35) formed on the front outer circumference of the cylindrical part using a bolt(41) and a nut(43).