Underground removal method using partial members of underground as earth pressure supporting structure

摘要

PURPOSE: A method for removing an underground structure which uses a part of the underground structure as an earth pressure support is provided to reduce construction costs and time by simplifying temporary work. CONSTITUTION: A method for removing an underground structure which uses a part of the underground structure as an earth pressure support is as follows. An underground retaining wall, in which earth pressure is applied, is divided into a column part and a wall part. The wall part of the underground retaining wall is removed and re-filled. The removing work and the refilling work are repetitively performed. When the removing and refilling works are finished, the column part is drawn and removed.