Structural responses of secondary lining of high-speed railway tunnel excavated in loess ground
Wong, Louis Ngai Yuen
Date of Issue2013
School of Civil and Environmental Engineering
To systematically study the mechanical properties and structural responses of the secondary lining for high-speed railway tunnels excavated in loess ground, on-site monitoring was performed to measure the contact pressure between the primary lining and secondary lining. It is found that the contact pressure reaches its first peak value when the tunnel formwork carriage is removed. The load acting on secondary lining is in the form of deformation pressure, which is different from the loose pressure prescribed in the China Tunnel Design Standard. The results obtained from this study enhance our understanding towards the mechanical characteristics of secondary lining for high-speed railway tunnels and are also beneficial to secondary lining design.
DRNTU::Engineering::Civil engineering::Structures and design
Advances in structural engineering
© 2013 Multi-Science Publishing. This paper was published in Advances in Structural Engineering and is made available as an electronic reprint (preprint) with permission of Multi-Science Publishing. The paper can be found at the following official DOI: [http://dx.doi.org/10.1260/1369-43220.127.116.111]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.