Innovation Technologies for Sustainable Construction of Underground Structure in Building

In this paper, excavation methods that have been widely used to expand underground structures in urban areas of Korea were introduced, and ways to expand existing underground spaces during remodeling of buildings using these methods were studied. In addition, analysis results through simulation, such as structural analysis and design for each construction method, were provided for actual sites. As a result, it was found that the Top-down method is better than the Bottom-up method for the remodeling of the building with underground structure. In particular, the effect of shortening the construction period was found to be greater when the demolition parallel construction method was applied.