PC Well-Rifre Method
The prestressed concrete (PC) Well-Rifre method is an anti-seismic reinforcement method performed by pressing a steel pipe into the ground around a PC well foundation. In the PC Well-Rifre method, steel plates are placed around a PC well and pressed into the ground with the reaction force from a ground anchor. Then, the plates are integrated with the existing pile by injecting underwater non-separable type non-shrinking mortar between the steel plates and existing pier to improve anti-seismic performance. In conventional reinforcement methods, open-cut excavation is required for reinforcement work to install retaining walls, such as liner plates or chemical grouting. In the PC Well-Rifre method, however, open-cut excavation is not required.
For this method, the Association of Pillar Reinforcement Method by Pushing Steel Pipes into the Ground has been established, improved, and promoted.
Outline of PC Well-Rifre method
NETIS Registration
NETIS Registration No.: KT-000063-V Term of publication is finished.
Features
- This method has economic benefits because large scale temporary construction is not required.
- This method has good workability in the narrow space under bridges and is environmentally friendly, with low noise and vibration.
- This method can be applied safely on an existing bridge while it remains open to public traffic.
Construction work for road bridge
Construction work for city water pipe bridge
