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文章针对声屏障施工诱发地表变形的特征和规律,应用ANSYS有限元软件结合实测的断面数据,对北京某声屏障施工对既有铁路结构安全性影响进行了研究,包括ANSYS模型的建立、参数选取、应用框架及其检验方法等,对声屏障施工步骤采用三维地层结构模型模拟,得出隧道开挖引起既有地铁结构的变形数值,以及变形对结构安全性的影响。可为相关工程施工提供参考。
In this paper, according to the characteristics and regularities of surface deformation induced by construction of sound barrier, ANSYS finite element software is used in combination with measured section data to study the influence of sound barrier construction on the safety of existing railway structures. The establishment of ANSYS model, parameter selection , Application framework and its test methods, the three-dimensional stratum structure model is used to simulate the construction process of acoustic barrier. The deformation values of the existing metro structure caused by tunnel excavation and the influence of deformation on the structural safety are obtained. For the construction of related projects provide a reference.