Horizontal Loading Tests of Single Piles with Different Diameters in a Centrifugal Field
Horizontal Loading Tests of Single Piles with Different Diameters in a Centrifugal Field
Large diameter piles are frequently used in high-rise buildings because of the heavy weight of their upper structure. The pile foundations of buildings are subjected to horizontal loads owing to earthquakes and winds. The evaluation of the horizontal resistance of piles is one of the most important tasks in the design of pile foundations. However, conducting full-scale horizontal load tests on large-diameter piles requires significant time and expense. In this study, horizontal loading tests of five single piles with different pile diameters in centrifugal fields were conducted to obtain basic experimental data. The piles were designed assuming cast-in-place concrete piles with diameters ranged from 1 to 5 m on the prototype scale. Experimental results showed that as the pile diameter increased, the pile head load per pile diameter increased and the depth at which the maximum bending strain occurred became deeper. Bending strain was maximized at approximately 3 m depth for the pile with a 1 m diameter and at approximately 15 m depth for the pile with a 5 m diameter. These results are due to that the flexural rigidity of the piles increases as the pile diameter increases. The results of these experiments are valuable as basic data for evaluating the horizontal resistance of large-diameter piles.
M. Odagiri; T. Kiriyama; Yoshiharu Asaka; Yuka Yamato
11th International Conference on Physical Modelling in Geotechnics (ICPMG2026)
Session 3: Resilient geotechnical infrastructure
https://doi.org/10.53243/ICPMG2026-193