In earthquake-prone countries such as Japan, the behaviour and seismic performance of foundation ground during large earthquakes determines the seismic stability of infrastructure structures. To date, pressuremeter tests have only been applied to monotonic loading and unloading. We are currently developing a cyclic pressuremeter test to better understand the dynamic properties of the ground. Since disturbance of soil samples and stress release affect the accurate estimation of soil dynamic properties, it is beneficial to estimate soil dynamic properties in situ without soil sampling to obtain more reliable results. Another major goal of this test method is to investigate the resistance performance of soil against liquefaction. The Noto Peninsula earthquake that occurred in Japan in January 2024 caused great damage in the Hokuriku region of Japan. Among the damages, the lateral flow damage due to liquefaction that occurred in Uchinada Town, Kahoku District, Ishikawa Prefecture was particularly noteworthy. Here, we report the results of a cyclic pressure meter test conducted on the damaged ground.
8th International Symposium on Pressuremeters (ISP2025)
Case Studies and Field Applications