基于核磁共振T2谱图的裂隙砂岩疲劳损伤分析

毛思羽,曹平,李建雄,欧传景

Fatigue Damage Analysis of Fractured Sandstone Based on Nuclear Magnetic Resonance T2 Spectrum

Siyu MAO,Ping CAO,Jianxiong LI,Chuanjing OU

图7 各疲劳上限应力下大孔占比随裂隙倾角的变化情况 注：岩样代号以A-B形式标注，A为裂隙倾角（°），B为疲劳上限应力（MPa）

Fig.7 Variation of the proportion of large pores with fracture inclination angle under different fatigue upper limit stresses