| 摘要 |
PURPOSE: A manhole connection hole and a manhole connection pipe join structure is provided to prevent the cracking of the connection unit and relax and separation about the tri-axial strain by the differential settlement of ground or the erosion, and to maintain the connection function of the manhole and connection tubing, and prevention function of water leakage. CONSTITUTION: A manhole connection hole and a manhole connection pipe join structure molds a manhole lower part body and a connection hole, is coupled with the pipe of the connection and is fixed, and is formed to connect the manhole and the connection pipe. A flange(42) is fixed at the connection pipe inlet(20) of a manhole lower structure(12). |
