Abstract This paper presents an analytical method for determining the modulus improvement factor (MIF) in geocell-reinforced soil layers. Using a modified version of the hyperbolic soil model as a constitutive model, the method is developed based on the soil-reinforcement interaction relating nonlinear elastic soil behavior to the linear elastic response of the reinforcement. The proposed method, in an original way, explicitly takes into account the geometry of the geocell pocket, effects of soil and geocell-reinforcement stiffness, compaction-induced stresses, soil strength and strain compatibility. The method can be used both analytically and using simple and presented non-dimensional charts. Parametric analyses show that the reinforcement, soil relation and the stresses induced during the compaction procedure are the major factors influencing MIF. An evaluation using data from several laboratory, full-scale and field experiments in works is presented showing good predictive capability of proposed method. An application procedure for calculating MIF is presented.

中文翻译：

---

计算土工格室加筋土层模量改进因子的应力相关方法

摘要 本文提出了一种确定土工格室加筋土层中模量改进因子（MIF）的分析方法。使用双曲线土壤模型的修改版本作为本构模型，该方法是基于将非线性弹性土壤行为与钢筋的线性弹性响应相关联的土壤-钢筋相互作用而开发的。所提出的方法以原始方式明确考虑了土工格室袋的几何形状、土壤和土工格室加固刚度的影响、压实引起的应力、土壤强度和应变兼容性。该方法既可以用于分析，也可以使用简单和呈现的无量纲图表。参数分析表明，钢筋，土壤关系和压实过程中引起的应力是影响 MIF 的主要因素。使用来自几个实验室、全尺寸和现场实验的数据进行了评估，显示了所提出方法的良好预测能力。介绍了计算 MIF 的应用程序。