PILLAR TYPE UNDERGROUND STRUCTURE AND METHOD FOR PILLAR TYPE UNDERGROUND STRUCTURE

摘要

According to the present invention, provided are a pillar-type underground structure and a construction method thereof, which comprises: an internal space (100) formed as the rock formations (1) are excavated; and a rock body (200) for supporting an upper surface and a lower surface of the internal space (100), wherein the rock body (200) is formed as a portion of the rock formations (1) which is not excavated.