Buried pipes are subjected to static and dynamic loads depending on their areas of use. To mitigate the risk of damage caused by these effects, various materials and reinforcement methods are utilized. In this study, five buried uPVC pipes designed in accordance with ASTM D2321 standards were reinforced with three different ground improvement materials: Geocell, Geonet, and Geocomposite, and experimentally subjected to dynamic impact loading. Acceleration, velocity, and displacement values were obtained from the experiments. Subsequently, finite element analysis (FEA) was performed using the ABAQUS software to determine stress values and volumetric displacements in the pipes, and the model was validated with a 5–7% error margin. In the final stage of the study, a parametric analysis was conducted by modifying the soil cover height above the pipe and the Geocell thickness in the validated finite element model. The parametric study revealed that the displacement value in the pipe decreased by 78% with an increase in soil cover height, while a 16% reduction was observed with an increase in Geocell thickness. The results demonstrate that the soil improvement techniques examined in this study provide an effective solution for enhancing the impact resistance of buried pipeline systems.

中文翻译：

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地基改良材料对埋地管道抗冲击性和性能的影响：一项实验和数值研究

埋地管道会根据其使用区域承受静态和动态载荷。为了降低这些影响造成的损坏风险，使用了各种材料和加固方法。在这项研究中，根据 ASTM D2321 标准设计的五根埋地 uPVC 管用三种不同的地基改良材料进行加固：土工格室、土工网和土工复合材料，并实验承受动态冲击载荷。从实验中获得加速度、速度和位移值。随后，使用 ABAQUS 软件进行有限元分析 （FEA） 以确定管道中的应力值和体积位移，并以 5-7% 的误差范围验证模型。在研究的最后阶段，通过在经过验证的有限元模型中修改管道上方的土壤覆盖高度和土工室厚度来进行参数分析。参数研究表明，随着土壤覆盖高度的增加，管道中的位移值减少了 78%，而随着土工室厚度的增加，观察到管道中的位移值减少了 16%。结果表明，本研究中研究的土壤改良技术为增强埋地管道系统的抗冲击性提供了一种有效的解决方案。