英文摘要 |
For the study of the soil-pile interaction in a liquefiable soil under earthquake shakings, shaking table tests on model piles in the large biaxial laminar shear box filled with saturated sand were conducted at the National Center for Research on Earthquake Engineering(NCREE), Taiwan. The model piles made of two different materials were used in the shaking table tests. Each model pile was placed in the shear box containing saturated clean fine sand. The pile tip was fixed at the bottom of the shear box to simulate the condition of a pile foundation embedded in rock or within a firm soil stratum. Strain gauges and accelerometers were installed on the pile surface to observe the behavior of the pile during shaking. The near-and far-field soil responses, including pore pressure changes, accelerations, and settlements were also measured. One-and multi-directional shaking table tests were performed on the model pile in the shear box with and without soil. The shakings included sinusoidal and recorded earthquake accelerations. The results of this study can be used for design of pile foundations under seismic loadings. |