Abstract
Vertical preloading and prestressing (PLPS) of geosynthetic-reinforced soil structure aims at substantially increasing its stiffness. The first prototype PLPS reinforced soil pier for a railway was constructed in 1996, and has been opened to service for more than 2 years. Long-term measurements for more than 3 years have been made, and the behavior at train passing was measured just after opening to service and after 2 years of service. The measurement results are described.
