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Application of Ultra High Toughness Cementitious Composites to Tunnel Lining
Ultra high toughness cementitious composites (UHTCC) demonstrates the properties of non-linear and hardening under load. Its tensile strain may reach over 3%, whereas its average fracture width is only about 60m which shows excellent ability in controlling crack. Tunnel lining is usually made of moulded concrete. One way it endure all the pressures from surrounding rock to guarantee tunnel stability, on the other hand also has low permeability to resist groundwater seepage, while UHTCC has the special advantages in this respect. By analyzing the pressures applied to tunnel lining in one tunnel section, discussion of how UHTCC is applied to lining is done, and some related questions about its application are explained by calculation.
Application of Ultra High Toughness Cementitious Composites to Tunnel Lining
Ultra high toughness cementitious composites (UHTCC) demonstrates the properties of non-linear and hardening under load. Its tensile strain may reach over 3%, whereas its average fracture width is only about 60m which shows excellent ability in controlling crack. Tunnel lining is usually made of moulded concrete. One way it endure all the pressures from surrounding rock to guarantee tunnel stability, on the other hand also has low permeability to resist groundwater seepage, while UHTCC has the special advantages in this respect. By analyzing the pressures applied to tunnel lining in one tunnel section, discussion of how UHTCC is applied to lining is done, and some related questions about its application are explained by calculation.
Application of Ultra High Toughness Cementitious Composites to Tunnel Lining
Applied Mechanics and Materials ; 256-259 ; 1226-1229
2012-12-13
4 pages
Article (Journal)
Electronic Resource
English
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