Reinforcement Construction of Root Pile Foundation in Unfavorable Geological Section of Tunnel

The poor geology of the tunnel includes water-rich basement, loose and weak, large deformation, faults or dissolution broken zone at the bottom of the tunnel, etc, in order to avoid the occurrence of disease on the ballastless bed of the tunnel, reinforcement measures at the bottom of the tunnel are required. Based on this, this paper mainly discusses the construction technology and quality control of root pile foundation reinforcement.