Earth wall reinforced with geogrids (a type of Mechanically Stabilizes Earth wall) are used widely nowadays in varies geotechnical applications. However, applications of reinforced earth are still very limited in marine works such as harbor structure (quay walls) or coastal protection (sea walls). This paper presents numerical investigation to evaluate the behavior of reinforced earth retaining walls when utilized as a quay wall. The numerical investigation was carried out employing finite element software (ABAQUS). The numerical investigation was conducted in two steps: a validation step and a parametric study step. In the validation step, a numerical model was verified using a full-scale laboratory test conducted on reinforced earth wall. The verified model was extended in the parametric study step to series models with different parameters governing the performance of reinforced earth wall in marine environment. The results of the numerical investigations show that the geogrid stiffness is the most sounding parameter on the lateral performance of the reinforced earth when employed as quay wall. The investigation confirms that the common geogrid length for the quay wall purpose should be at least equal to the wall height to ensure the overall external stability of the wall. The results of the numerical analysis emphasize that smaller geogrid spacing should be used in the top layers to minimize the lateral and vertical deformation of the quay wall. Nevertheless, the subgrade soil and the retained soil has a little effect on the total deformation of the wall, it is highly recommended to use well compacted sand in the retained soil to minimize the deferential movement between the reinforced soil and face blocks.

如今，用土工格栅加固的土墙（一种机械稳定土墙）在各种岩土工程应用中得到了广泛的应用。但是，在诸如港口结构（码头墙）或海岸保护（海墙）之类的海洋工程中，加筋土的应用仍然非常有限。本文提出了数值研究，以评估加筋土挡土墙用作码头墙时的性能。数值研究是使用有限元软件（ABAQUS）进行的。数值研究分两个步骤进行：验证步骤和参数研究步骤。在验证步骤中，使用在加筋土墙上进行的全面实验室测试验证了数值模型。在参数研究步骤中，将经过验证的模型扩展为具有不同参数的系列模型，这些模型控制着海洋环境中加筋土墙的性能。数值研究结果表明，土工格栅刚度是加筋土在用作码头墙时对侧向性能影响最大的参数。调查证实，用于码头墙的公用土工格栅长度应至少等于墙的高度，以确保墙的整体外部稳定性。数值分析的结果强调，应在顶层使用较小的土工格栅间距，以最大程度地减少码头墙的横向和垂直变形。不过，路基土和保留土对墙体的总变形影响很小，