Abstract Cracking behaviors and its influence on the hydraulic properties are of paramount importance in reservoir engineering and geotechnical engineering, and rare studies focus on the failure process of geomaterials and its effect on the transport properties with fractural microstructures. Therefore, a double threshold segmentation algorithm is proposed to obtain the crack-pore-grain microstructures in this paper, and the cracking behaviors and evolution process of cracks are studied based on these microstructures. In addition, a single-phase flow is simulated to evaluate the effect of fractures on the transport properties in fractural microstructures. This approach is helpful to understand the failure mechanism and the influence of fractures on the transport properties of geomaterials at microscale, which provides an excellent tool to study the fractural and hydraulic properties.

中文翻译：

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基于岩土材料断裂微结构模型的开裂行为及水力性能评价

摘要 开裂行为及其对水力性质的影响在油藏工程和岩土工程中至关重要，很少有研究集中在岩土材料的破坏过程及其对裂缝微观结构输运性质的影响上。为此，本文提出了一种双阈值分割算法来获取裂纹-孔-晶粒微观结构，并基于这些微观结构研究裂纹的开裂行为和演化过程。此外，模拟单相流以评估裂缝对裂缝微观结构中输运特性的影响。这种方法有助于理解微观尺度上的破坏机制和裂缝对岩土材料输运性质的影响，