The increase in depth of mines due to the depletion of surface deposits leads to unsafe tunnel construction and overall ore extraction. This is due to tunnel instability associated with the surrounding rock mass’s ability to exhibit creep that occurs over time. However, the explicit description of this mechanism using conventional constitutive models has proven to be difficult and inadequate. Hence, this paper presents an integrated viscoelastic viscoplastic visco-damage model with the Duvaut-Lions function. The presented model is calibrated by experimental data to determine the viscoelastic viscoplastic and visco-damage parameters. It is further implemented in a finite volume numerical code and verified on an experimental scale by numerical modeling of a cylindrical specimen. It describes the 3-phase creep mechanism perfectly as compared to the inbuilt conventional integer-order derivative model. Results from the conducted verification show that it can successfully be employed to describe the long-term behavior associated with the creep mechanism.

由于地表沉积物的枯竭导致矿井深度的增加导致不安全的隧道建设和整体矿石开采。这是由于隧道失稳与周围岩体表现出随时间推移而发生的蠕变的能力有关。但是，已证明使用常规的本构模型对该机制进行明确描述是困难且不充分的。因此，本文提出了具有Duvaut-Lions函数的集成的粘弹性粘塑性粘滞损伤模型。通过实验数据对提出的模型进行校准，以确定粘弹性，粘塑性和粘滞损伤参数。它进一步以有限体积的数字代码实现，并通过圆柱样本的数值建模在实验规模上进行了验证。与内置的常规整数阶导数模型相比，它完美地描述了三相蠕变机制。进行的验证结果表明，它可以成功地用于描述与蠕变机制相关的长期行为。