【摘要】 管道埋深是管道设计时需考虑的重要因素之一,不同地域有不同的要求,在崩塌落石地区,由于落石对管道的冲击作用,管道容易发生破坏。文章利用ANSYS/LS-DYNA有限元软件,通过对参数的合理设置,选取适当的材料模型,对埋地输气管道不同埋深时落石对它的动力响应进行了三维数值模拟,得出管道在不同埋深下的响应规律,其计算结果为地质灾害多发地段埋地输气管道的设计施工提供了参考依据。更多还原

【Abstract】 Buried depth is one of the important factors to be considered in pipeline design. There are different requirements to different areas. In the region of rock collapse, pipeline is easily damaged by rockfall impact. This paper uses the software ANSYS/LS-DYNA to make a three-dimensional numerical simulation for rockfall impact to gas pipelines buried at different depths by setting reasonable parameters and selecting an appropriate material model, and gets the impact response law of pipelines buried at different depths. The results provide a reference to the design and construction of other buried pipelines in the regions where geological hazards occur frequently.更多还原