Size-related factors, such as the dimensions and cell count of geocell, play a crucial role in determining the effectiveness of soil reinforcement. In this study, a 3D coupled framework that leverages the strengths of both continuum and discontinuum methods was developed to investigate the influence of pocket size and multi-cell configuration on geocell-reinforced soils. To unveil the impact of size-related factors on soil-geocell interactions, reinforced soils containing various geocell configurations (single large-sized cell, multiple small-sized cells), as well as geocell-free soils subjected to increasing levels of confining pressure were extensively examined. This thorough investigation aimed to establish correlations between macroscopic responses and underlying micromechanical mechanisms. Our findings revealed that the presence of the geocell not only enhances the densification of interparticle contacts and reduces the number of floating particles that contribute minimally to load support, but also facilitates the concentration of force chains within the geocell structure. This leads to an increase in elastic stiffness along the loading axis. These observations highlight that the geocell's confining mechanism enhances both the load-carrying capacity and the infill rigidity, thereby preventing lateral soil spreading. In essence, the geocell serves to increase the soil's ability to withstand load and maintain its structural integrity laterally.

与尺寸相关的因素，例如土工格室的尺寸和单元数量，在确定土壤加固的有效性方面起着至关重要的作用。在本研究中，开发了一个利用连续体和不连续体方法优点的 3D 耦合框架，以研究袋尺寸和多单元配置对土工格室加固土壤的影响。为了揭示尺寸相关因素对土壤-土工格室相互作用的影响，包含各种土工格室配置（单个大尺寸格室、多个小尺寸格室）的加筋土壤以及承受不断增加的围压水平的无土工格室土壤进行了广泛的检查。这项彻底的研究旨在建立宏观反应和潜在的微观机械机制之间的相关性。我们的研究结果表明，土工格室的存在不仅增强了颗粒间接触的致密化，减少了对负载支撑贡献最小的漂浮颗粒的数量，而且还促进了土工格室结构内力链的集中。这导致沿加载轴的弹性刚度增加。这些观察结果表明，土工格室的限制机制增强了承载能力和填充刚度，从而防止了土壤横向扩展。从本质上讲，土工格室的作用是提高土壤承受荷载的能力并保持其横向结构完整性。