SLURRY WALL UNDERPINNING CONSTRUCTION METHOD USING UNDERPINNING CONCRETE TUBE WITH UNEVEN SURFACE

摘要

PURPOSE: A slurry wall underpinning method using a centrifugally formed underpinning concrete tube (UCT) having an uneven surface is provided to reduce construction costs and improve structural strength by using a concrete tube instead of a circular steel pipe. CONSTITUTION: A slurry wall underpinning method using a centrifugally formed UCT having an uneven surface is as follows. A slurry wall is formed by injecting a stabilizer into an excavated portion, and a steel mesh is inserted into the slurry wall. A concrete tube (40) having a through hole (41a) is inserted into the slurry wall to be supported to the steel mesh. Concrete is placed in the excavated portion and cured. The bottom surface of the concrete tube is bored. A soldier pile is inserted into the bored hole, and concrete is placed therein to fix the soldier pile to the concrete tube.