Application of Ultra High Toughness Cementitious Composites to Tunnel Lining

Abstract:

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 60m 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.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 1226-1229
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.1226
• Online since: December 2012
• Authors: Tong Chun Han, Fu Jian Wang, Hong Qiang Dou
• Keywords: Load Structure Method, Tunnel Lining, UHTCC

References

[1] WANG Hua-lao & LI Ning et al. 2009. Effect of lining thickness lack on lining safety for highway tunnel. Journal of Traffic and Transportation Engineering 9(2):32-38.

[2] P.Nanakorn & H.Horii 1996. A Fracture-Mechanics-Based Design Method for SFRC Tunnel Linings. Tunneling and Underground Space Technology 11(1):39-43.

DOI: 10.1016/0886-7798(96)00050-8

[3] Bernardino Chiaia & Alessandro P. Fantilli et al. 2009. Combining fiber-reinforced concrete with traditional reinforcement in tunnel linings. Engineering Structures 31:1600-1606.

DOI: 10.1016/j.engstruct.2009.02.037

[4] Wu Qiyong &Cai Yelan 2006. Applying carbon fiber cloths to repair lining cracks in a double-arched tunnel. Modern Tunneling Technology 43(6):70-75.

[5] Li Q H & Xu S L. 2009. Experimental investigation and analysis on flexural performance of functionally graded composite beam crack-controlled by ultra high toughness cementitious composites. Sci China Ser E-Tech Sci 52(6): 1648-1664.

DOI: 10.1007/s11431-009-0161-x

[6] Xu Shilang 2007. Research and application of green ECC materials with ultra high toughness. Dilian University of Technology.

[7] Li V C & Wang S et al. 2001. Tensile strain-hardening behavior of PVA-ECC. ACI Material Journal 2001 98(6): 483-492.

DOI: 10.14359/10851

[8] CHENG Ya-dong & SHENG Ya-jun 2006. Mechanical Calculation and Analysis On Repair and Reinforced Project in Yangzhanling Tunnel. West-China Exploration Engineering 7:174-175.