Restoration of Aso-Choyo-ohashi Bridge: In order to make it less susceptible to the influence of slope failure because of weathering or earthquake in the future, and not to be fatal damaged, we advised the road administrator on bridge structures, its alignment, and elimination of the unstable ground.
In the Kumamoto Reconstruction Project, we provided technical support concerning repair/reinforcement methods and monitoring* through the Kumamoto Restoration Project Team. Alongside NILIM, the PWRI played a leading role in the project, contributing, for example, with an early resumption of the main route that connects the city of Kumamoto and the village of Minamiaso (including Aso-Choyo-ohashi Bridge).
* To verify the effects of the repairs during the execution.
Technical support at the area affected by the earthquake off the Pacific coast of Tohoku in 2011
Damage examination of road bridges following the Kumamoto earthquake
Providing support to investigate and restore bridges afflicted by an earthquake is one of the most important roles of CAESAR. In cooperation with NILIM, we receive the request from the road administrators, investigate the damage, give advice on traffic regulation, provide support for urgent technical measures, and assist with emergency restoration and full-scale recovery plans. We also analyze the cause of the damages, based on the examination results, and conduct research and development on countermeasure technologies.
When the earthquake struck the Pacific coast of Tohoku in March 2011, we immediately sent a group of technicians to the area and examined approximately 200 bridges. The investigation body during that period, consisting of as many as 240 man-days with CAESAR technicians alone, conducted examination activities to provide the bridge administrators with continuous technical support for emergency restoration and full-scale recovery of the afflicted bridges.
After the Kumamoto earthquake of April 2016, a group of specialists from the PWRI team corresponding to nearly 200 man-days was dispatched to the area to verify the damages. In the case of areas that were severely affected, a group representing the state was responsible for disaster restoration. A restoration analysis project team (PT) was formed for each road structure to conduct detailed analyses and study restoration methods.
