Steel pipe reinforcement device with a drain pipe and steel pipe reinforcement method using the same

摘要

The steel pipe reinforcing device having a drain pipe according to the present invention comprises a pipe-shaped steel pipe inserted into the perforated hole, a grout injection pipe configured in a pipe shape to inject grout and injected into the steel pipe. In order to maintain a closed state while grout is injected through the grout through the grout injection pipe, and to drain the water inside the perforated hole after the grout injection is completed It can be configured to be open.