the seismic reinforcing steel insertable type jet grouting structure and the construction method thereof

摘要

The present invention relates to a steel penetration type jet grounding structure for seismic reinforcement, and a construction method thereof. The present invention inserts a steel material (200) after injecting a grout material (G) into an excavation hole of the ground (100). An upper end of the steel material (200) is coupled to a head cap (300) and is poured. A lower end of the steel material (200) is vertically lowered by a guide cage (400) so that the steel material (200) penetrates into the grout material (G).