Abstract Soil is weak in tension but strong in compression. The resistance to tensile deformation of soil is given by the tensile force of the reinforcement in the reinforced soil, and the tensile force of the reinforcement is generated by the frictional force at the soil-reinforcement interface. When the soil-reinforcement is effectively interacted by the compaction, the deformation of the soil becomes equal to the tensile deformation of the reinforcement material, which means that the soil is bound to the tensile force of the reinforcement material and thus has a great resistance to the tensile deformation. Therefore, compaction is one of the major parameters affecting the behavior of the mechanically stabilized earth (MSE) wall. In this study, a series of numerical analyses was performed to investigate the compaction effect on the behavior of the MSE walls. The results showed that the horizontal displacement of the MSE wall significantly increased during the construction and decreased because of surcharge load application after the construction. In addition, the strains of reinforcement increased significantly during the construction and decreased slightly because of surcharge load application after the construction. Therefore, it is important to consider the compaction loads when modeling the MSE walls, so that the lateral displacement at wall facing will not be underestimated during construction and will not be overestimated because of surcharge load application after the construction.

中文翻译：

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压实对面板型 MSE 墙行为的影响的 3D 数值分析

摘要 土的拉力弱，压强。土体抗拉变形的阻力由加筋土中钢筋的拉力给出，加筋的拉力是由土-钢筋界面的摩擦力产生的。当土体与加固物通过压实作用有效相互作用时，土体的变形量与加固材料的拉伸变形量相等，这意味着土体受加固材料的拉力约束，从而具有很大的抗压能力。拉伸变形。因此，压实是影响机械稳定土 (MSE) 墙行为的主要参数之一。在这项研究中，进行了一系列数值分析以研究压实对 MSE 墙的行为的影响。结果表明，MSE墙的水平位移在施工过程中显着增加，由于施工后施加附加荷载而减少。此外，施工期间钢筋应变显着增加，并因施工后施加附加荷载而略有下降。因此，在模拟 MSE 墙时考虑压实荷载是很重要的，这样墙面侧向位移在施工过程中不会被低估，也不会因为施工后施加附加荷载而被高估。结果表明，MSE墙的水平位移在施工过程中显着增加，由于施工后施加附加荷载而减少。此外，施工期间钢筋应变显着增加，并因施工后施加附加荷载而略有下降。因此，在模拟 MSE 墙时考虑压实荷载是很重要的，这样墙面侧向位移在施工过程中不会被低估，也不会因为施工后施加附加荷载而被高估。结果表明，MSE墙的水平位移在施工过程中显着增加，由于施工后施加附加荷载而减少。此外，施工期间钢筋应变显着增加，并因施工后施加附加荷载而略有下降。因此，在模拟 MSE 墙时考虑压实荷载是很重要的，这样墙面侧向位移在施工过程中不会被低估，也不会因为施工后施加附加荷载而被高估。钢筋应变在施工过程中显着增加，并因施工后施加附加荷载而略有下降。因此，在模拟 MSE 墙时考虑压实荷载是很重要的，这样墙面侧向位移在施工过程中不会被低估，也不会因为施工后施加附加荷载而被高估。钢筋应变在施工过程中显着增加，并因施工后施加附加荷载而略有下降。因此，在模拟 MSE 墙时考虑压实荷载是很重要的，这样墙面侧向位移在施工过程中不会被低估，也不会因为施工后施加附加荷载而被高估。