| 摘要 |
The present invention relates to a column member and a construction method for an underground structure without a temporary structure using the same. The column member includes; a guide column (610) to be penetrated into the support foundation of the excavation area; a main column (630) to be combined to the upper part of the guide column (610); a connection member (620) for guide to be installed at the upper part of the guide column (610) and the lower part of the main column (630) to secure the verticality when installing the main column (630). The connection member for guide (620) has a plate member (621) having an insertion groove (622) at the center in order for the upper part of the guide column (610) to be inserted therein, and connected to the upper part of the guide column (610) and the lower part of the main column (630); a plurality of support members (623) protruding to the upper part of the plate member (621) to guide the connection direction of the main column (630), and installed at intervals along the circumference of the main column (630); and a plurality of connection members of which one side is combined to the lower side of the main column (630) to be combined with the support members (623) and the other side is combined with the support member (623) when the main column (623) is constructed. The present invention improves the installation accuracy of the column and the girder, therefore, secures the stable structure, makes the construction easier, is good for pressure effect and shearing resistance to distribute the column load, and prevents the leakage by improving the water-proof function. Since the process to install and remove the temporal facilities is omitted, the time, the cost and the danger of negligent accidents can be reduced. |
