桩土相互作用的振动台试验研究

桩土相互作用的振动台试验研究 English Version

基金项目: 国家高技术研究发展计划 (863计划 )资金资助项目(2 0 0 2AA61 50 80 )

摘要: 通过振动台试验 ,研究了饱和砂土中桩基的振动特性 ,对桩土振动过程中的动力相互作用有了初步的认识。根据试验结果 ,说明了饱和砂土中孔压增长对桩身内力的降低效果。认为不同深度处的振动孔压的幅值大小与相应深度处的弯矩的幅值大小有关。
- 砂土 /
- 液化 /
- 桩基础 /
- 振动台 /
- 桩土相互作用
Abstract: The dynamic response of pile foundations in saturated sand was explored through the shake table test. Some ideas about dynamic soil-pile interaction during strong shaking were obtained. Based on the results of the experiment, it is demonstrated that the bending moment of the pile decreases with the increase of the pore pressure in sand. And the conclusion is presented that the amplitude of the vibrating pore pressure at different depth is related to the amplitude of the bending moment of pile at the corresponding depth.
- sand /
- liquefaction /
- pile foundations /
- shake table /
- soil-pile interaction