A METHOD OF CONSTRUCTING COLUMN IN A CONCRETE REVERSE PLACING METHOD

摘要

Date38A METHOD OF CONSTRUCTING COLUMN IN A CONCRETEREVERSE PLACING METHODAn underground pile, such as the pile (2), is provided in the deep portion of a pit, such as thedrilled hole (2s), formed under the ground line (GL). Columns (3,4,7) having a leg portion forconnection, such as the leg portion (33), projecting to the lower portion of the steel pipe (31),and the columns (3,4,7) are inserted into the drilled hole (2s). The leg portion (33) of thecolumn (3) is inserted into the concrete (21), which is not yet hardened, of the pile (2) so as tofix into the concrete (21). As a result, the column (3) is connected with and supported by thepile (2). Then , the columns (3,4,7) can be easily built up in the ground with a small insertionresistance, and can be immediately used as a column of a main structure, thereby the columnconstruction work in a concrete reverse placing method is made simplified.Figure 1