Abstract:
Wet pile filling technique was used for super-long pressure pile construction in Glory Xi’an Financial Center project. A series of measures, such as pile position deviation control, back-cycling hole drilling control, steel cage positioning and cage top elevation control, underwater filling pile concrete control, as well as foundation pile connection and steel reinforcement connection measures, etc., were adopted to successfully guarantee the smooth wet pile filling construction. Post grouting at bottom and sides of the filling pile was adopted to obviously increase the side friction and end bearing capacity of pile.