隧道支护结构体系及其协同作用
TUNNEL SUPPORT STRUCTURE SYSTEM AND ITS SYNERGISTIC EFFECT
图19. 不同刚度下二次衬砌安全系数与支护时机关系
Fig.19. Relationship between safety factor and support time of secondary lining under different stiffness
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隧道支护结构体系及其协同作用
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TUNNEL SUPPORT STRUCTURE SYSTEM AND ITS SYNERGISTIC EFFECT
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图19. 不同刚度下二次衬砌安全系数与支护时机关系 |
Fig.19. Relationship between safety factor and support time of secondary lining under different stiffness |
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