Figures of the Article
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Analysis process of seismic fragility analysis method for evaluation of dislocation resistance of tunnels crossing active fault zones
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Geometrical model for surface fault
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Schematic diagram of model
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Schematic diagram of FEM model
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Relationship among stress, plastic strain and damage of C30
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Regression diagram of rupture average dislocation with respect to moment magnitude
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Fitting relationship between relative value of dislocation and relative position of rupture
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Section diagram of three key tunnel locations
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Relationship between damage index of lining section at dislocation plane and slip-displacement
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Damage development and distribution of lining section at dislocation surface
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Fragility curves of lining section at key section
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Moderate damage fragility curves of tunnel crossing different dip angles fault at key section
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Fragility curves of moderate damage state in tunnels crossing different rupture positions
Tables of the Article
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Damage states
dsi 损伤状态 DI 描述 ds1 安全 0≤DI＜0.1 主要发生弹性变形 ds2 轻微损伤 0.1≤DI＜0.4 结构出现较大的塑性变形，但强度和功能性无实质性减弱 ds3 中等损坏 0.4≤DI＜0.7 局部或整体塑性变形超出功能性限值，结构仍保持完整性 ds4 严重损伤 DI≥0.7 严重损伤，位移和塑性变形发散，结构发生失稳、压溃、断裂、失去完整性 -
Mechanical parameters of surrounding rock
名称 密度
ρ/(g·cm-2)杨氏模量
E/MPa泊松比ν 摩擦角φ/(°) 屈服应力σy/MPa 破碎带 2.0 300 0.35 30 5 岩体 2.5 2500 0.30 45 30 C30
混凝土2.4 24500 0.20 — —
