| 摘要 |
A construction structure of a connection pipe is provided to protect a manhole from external impact by attaching a heat shrinkable sheet on the wall of the manhole. A construction structure of a connection pipe comprises a manhole(1), connection pipes(10), and a heat shrinkable sheet(20). The manhole is provided with holes(2) at lateral part. The connection pipe includes a pipe member(11) and a flange(13). The pipe member is inserted into the hole of the manhole. The flange contacts with the wall around the hole of the manhole. The heat shrinkable sheet is attached around the outer wall of the manhole, covering the flange of the connection pipe. The pipe protruding outwards is exposed out of the heat shrinkable sheet through cut portions(21,22). |
