The main objective of this paper is to perform a comparative Finite Element Analysis (FEA) of the mechanical behaviour of buried GRE composite and X60 steel pipelines under various scenarios with realistic loadings conditions that may be experienced by actual buried pipes. The response of buried pipes is influenced by various factors and their synergistic effects, so in this study, with a novel strategy, a procedure is developed to investigate these synergisms. Firstly, after constructing FE models and validating them with using analytical and previous numerical models available in the literature, these FE models are developed to collaborate with the statistical methods and afterwards, they are taken into account as virtual experiments. FE analysis in cooperation with the Taguchi approach is used to obtain a well-planned set of experiments to get a targeted study. Finally, the obtained results can be used to supply a better understanding of the failure process of buried pipes and optimization of design features of future buried pipelines which may provide a significant insight for installation designs, failure prevention, maintenance strategies for diminishing costs and prevention from catastrophic occurrences. The perspective of the presented strategy shows that it is more efficient and comprehensive than preceding procedures. Both GRE and X60 buried pipes are studied under pseudo-earthquake effects. Results show composite pipes are an appropriate option for earthquake-prone areas.

本文的主要目的是对在实际载荷条件下可能发生的实际情况下的埋入式GRE复合材料和X60钢管道的力学行为进行比较有限元分析（FEA）。埋管的响应受多种因素及其协同作用的影响，因此在本研究中，采用一种新颖的策略，开发了一种研究这些协同作用的程序。首先，在建立有限元模型并使用文献中可用的分析模型和先前的数值模型对其进行验证之后，开发这些有限元模型以与统计方法协作，然后将它们作为虚拟实验加以考虑。有限元分析与Taguchi方法相结合可用于获得计划周密的实验，以进行有针对性的研究。最后，获得的结果可用于更好地了解地下管道的故障过程，并优化未来地下管道的设计特征，这可能为安装设计，故障预防，降低成本的维护策略和预防方面提供重要见解。灾难性的事件。所提出的策略的观点表明，它比先前的过程更有效，更全面。GRE和X60埋管均在拟地震作用下进行了研究。结果表明，复合管是地震多发地区的合适选择。获得的结果可用于更好地理解地下管道的故障过程以及优化未来地下管道的设计特征，这可能为安装设计，故障预防，降低成本的维护策略以及预防灾难性事件提供重要的见识。 。所提出的策略的观点表明，它比先前的过程更有效，更全面。GRE和X60埋管均在拟地震作用下进行了研究。结果表明，复合管是地震多发地区的合适选择。获得的结果可用于更好地了解地下管道的故障过程以及优化未来地下管道的设计特征，这可能为安装设计，故障预防，降低成本的维护策略以及预防灾难性事件提供重要见解。所提出的策略的观点表明，它比先前的过程更有效，更全面。GRE和X60埋管均在拟地震作用下进行了研究。结果表明，复合管是地震多发地区的合适选择。降低成本和预防灾难性事件的维护策略。所提出的策略的观点表明，它比先前的过程更有效，更全面。GRE和X60埋管均在拟地震作用下进行了研究。结果表明，复合管是地震多发地区的合适选择。降低成本和预防灾难性事件的维护策略。所提出的策略的观点表明，它比先前的过程更有效，更全面。GRE和X60埋管均在拟地震作用下进行了研究。结果表明，复合管是地震多发地区的合适选择。