轨道交通振动中的人工边界问题研究

随着城市化的发展,轨道交通系统导致的振动对环境的影响已日愈引起人们的关注。采用粘性边界条件对振动波在土体中传播问题进行了研究。利用ANSYS软件建立轨道结构和轨下土体的计算模型,将计算得到的轨道结构基础反力的数据输入土体模型,计算土体的动力响应,得到振动波在土体中的传播规律。

Study on the Artificial Boundary Conditions in the Vibration Induced by Railway Traffic

With the development of city planning, people have paid more and more attention to the problem that the vibration induced by railway traffic affects the environment. So this article mainly focuses on the study of the spreading of vibration wave in the earth under the condition of viscous boundary condition. In the presentation, a calculation model has been established by using ANSYS for railway structure and the earth under the railway, to input the force dates operating on railway foundation to the earth model and calculate dynamical respond of the earth, thus to receive the rule of vibration wave spreading in earth.