| 摘要 |
The present invention relates to a substructure of a collecting well or an elevator pit and, more specifically, to a substructure of a collecting well or an elevator pit to install a support frame for supporting the bottom of a vertical wall on the bottom of a collecting well or an elevator pit without the installation of a concrete form for the placement of concrete, thereby reducing construction costs and periods for concrete work. In addition to this, the support frame can be installed on the top of a soft bottom floor as well as a concrete bottom floor of a building, thereby maintaining the strength of the substructure of a collecting well or an elevator pit. |
