ABSTRACT
In order to verify the stability evaluation flow of slopes with prevention piles installed, a model test of a slope was conducted. Prevention piles were designed to be installed on a slope with a distribution of successive weak layers, ensuring the safety factor of 1.2 for the design maximum seismic coefficient (K H) equal to 0.6, based on past stability evaluation flows. A slope model installed with prevention piles based on the design was created and a dynamic centrifugal force model experiment was conducted. As a result, it was confirmed that the prevention piles functioned even when the maximum horizontal acceleration (6.31 m/s2) equivalent to the designed seismic coefficient worked, and that no noticeable change occurred on the slope. Based on these facts, the validity of the existing stability evaluation flow was demonstrated.
