| 摘要 |
An angle-adjusting prefabricated manhole is provided to be constructed simply in various sizes according to the size of a manhole to be constructed by piling up many primary and secondary blocks, to regulate the direction and height of connecting pipes simply at construction by coupling a ring member to a coupling hole of a secondary block, to heighten the strength of a manhole by forming primary and secondary filling grooves on the edge of the primary and secondary blocks and filling up with filler, and to promote the convenience of construction by coupling tow hooks on the primary and secondary blocks and towing with heavy equipment. The angle-adjusting prefabricated manhole comprises many primary blocks(50) and many secondary blocks(60) piled in a circumferential direction and a height direction to be formed in a cylindrical shape and provided with primary and secondary filling grooves(51) formed on the edge and tow hooks fixed to the filling grooves to tow with heavy equipment such as a crane, etc., a ring member provided with an arc plane to support connecting pipes(91~93) coupled to a ring groove formed on the edge of the coupling hole of the secondary block to be displaced in angle and a hydrophilic seal to prevent the leakage of water between a coupling hole and the connecting pipes, and filler such as cement mortar filled and adhered in the primary and secondary filling grooves. |
