This article proposes an approach to ensure consistency between constitutive formulations used in double-porosity models when the macrostructural void ratio, e_M, is very small. These formulations model processes of different physical natures and therefore are usually presented independently, in which case an additive decomposition is assumed, and they calculate the total strain of the system as the sum of the strains caused by each process. This independence means that when e_M is reduced, the contributions considered are not always consistent. To solve this problem, soil stiffness in the proposed approach is increased when e_M is reduced, and at the same time the effect on strain by macrostructural processes not linked to changes in stress is reduced. To simulate the flow, it is assumed that there is always a minimum operating value of e_M that controls mass transport. This approach was applied to a practical case, and confirmed that when the effect of the stress state on microstructure behavior was taken into account, the conceptual framework initially proposed for non-negligible e_M values was satisfactorily extended.

本文提出了一种方法，以确保当宏观结构空隙率e _M非常小时，双孔隙率模型中使用的本构公式之间的一致性。这些公式模拟了不同物理性质的过程，因此通常独立呈现，在这种情况下，假定加法分解，并且它们计算系统的总应变，作为每个过程引起的应变的总和。这种独立性意味着当e _M减少时，所考虑的贡献并不总是一致的。为了解决这个问题，当e _M减少，同时与应力变化无关的宏观结构过程对应变的影响也减少了。为了模拟流动，假设始终存在控制质量传输的e _M的最小操作值。该方法应用于实际案例，并证实当考虑应力状态对微观结构行为的影响时，最初为不可忽略的e _M值提出的概念框架得到了令人满意的扩展。