| 摘要 |
PURPOSE: A manhole forming apparatus easy to the separation of a manhole is provided to easily separate the cured manhole between an internal mold and an external mold by installing an additional mold. CONSTITUTION: A manhole forming apparatus easy to the separation of a manhole comprises an external mold, an inner mold(20), an additional mold(30), and an attach/detach device(40). The external mold has an inner cavity. The inner mold includes a plurality of connection members(21) and an opening. The additional mold includes first and second moving pieces(31,32) and first and second fixed pieces(33,34). The attach/detach device is detachable from the manhole. |
