CONSTRUCTION METHOD OF BASEMENT STRUCTURE USING RETAINING WALL AND STEEL COLUMN

摘要

PURPOSE: A construction method of an underground structure using a retaining wall and a steel column is provided to improve construction efficiency by reducing materials required for construction and to prevent a landslide. CONSTITUTION: A construction method of an underground structure using a retaining wall and a steel column is as follows. Retaining walls(100) are installed along a boundary line of an underground structure. Inner steel columns are installed in the inner side of the retaining walls. Outer steel columns(120) are installed in the inner side of the retaining walls. Parts of the inner and outer steel columns are exposed by first excavating the ground. Outer steel girders(130) are formed between the outer steel columns. Inner steel girders(140) are formed between the inner steel columns.