ABSTRACT
Disaster-prevention countermeasures for various kinds of civil structures are currently being reexamined, and development of an efficient anti-seismic reinforcing method for existing foundations is essential. However, these works have been undertaken only infrequently in the past along with other types of reinforcement due to the fact that foundation reinforcement work generally involves very significant construction costs and time requirements because of several factors such as the confined space under superstructures and because projects often tend to become large in scale.
