摘要
为了完成多桩型复合地基抗液化性能振动台试验,利用实验室已有的反力墙和作动器,设计了一个小型的简易单向振动台系统和堆叠式剪切模型箱。堆叠式剪切模型箱内部尺寸为1200mm×800mm×772mm,由8层铝合金框架和7层橡胶条叠合而成。利用ANSYS有限元软件对模型箱及地基-模型箱进行了动力分析,并通过饱和粉细砂地基模型振动台试验验证了模型箱的效果。结果表明,所设计的模型箱能够较成功地模拟天然场地的边界条件,为多桩型复合地基抗液化性能振动台试验的顺利进行打下基础。
In order to complete shaking table experiment of multi-pile composite foundation liquefaction resistance,using existing reaction wall and actuator in laboratory,a small simple and easy unidirectional shaking table system and laminar shear model box were developed.The internal dimensions of laminar shear model box are 1200 mm in length,800 mm in width and 772 mm in height,and it is made of 8layers of aluminum alloy frame and 7layers of rubber strip.Dynamic analysis of model box and foundation-model box was carried respectively by using finite element software ANSYS.The effect of model box was verified based on shaking table experiment of saturated silt sand foundation model.Experimental results show that designed model box can successfully simulate natural site boundary conditions and ensure that shaking table experiment of multi-pile composite foundation liquefaction resistance can be carried out smoothly.
出处
《实验力学》
CSCD
北大核心
2015年第6期797-801,共5页
Journal of Experimental Mechanics
基金
国家自然科学基金项目(51208510
51108235)
山东省研究生教育创新计划项目(SDYY15140)
石油大学(华东)研究生教改重点项目(YJ-A1408)
中国石油大学(华东)考试改革项目(KS-A201403)
关键词
单向振动台
堆叠式剪切模型箱
地基模型
液化
unidirectional shaking table
laminar shear model box
foundation model
liquefaction
