Wang, H. N., Utili, Stefano and Jiang, M. J. (2014) An analytical approach for the sequential excavation of axisymmetric lined tunnels in viscoelastic rock. International Journal of Rock Mechanics and Mining Sciences, 68 . pp. 85-106. doi:10.1016/j.ijrmms.2014.02.002 ISSN 1365-1609.

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Abstract

The main factors for the observed time dependency in tunnel construction are due to the sequence of excavation, the number of liners and their times of installation and the rheological properties of the host rock. A generalized derivation procedure for any viscoelastic model is presented accounting for the sequential excavation of a circular tunnel supported by any number of liners of different thicknesses and stiffnesses installed at different times in a viscoelastic surrounding rock under a hydrostatic stress field under plane strain axisymmetric conditions. Sequential excavation was accounted for assuming the radius of the tunnel growing from an initial value to a final one according to a time-dependent function to be prescribed by the designer. The effect of tunnel advancement was also considered. For the generalized Kelvin viscoelastic model, explicit analytical closed form solutions were presented, which can be reduced to the solutions for the Maxwell and Kelvin models.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH):	Tunnels -- Design and construction, Viscoelastic materials
Journal or Publication Title:	International Journal of Rock Mechanics and Mining Sciences
Publisher:	Pergamon Press
ISSN:	1365-1609
Official Date:	June 2014
Dates:	Date Event June 2014 Published 25 March 2014 Available 3 February 2014 Accepted 20 February 2013 Submitted
Volume:	68
Number of Pages:	22
Page Range:	pp. 85-106
DOI:	10.1016/j.ijrmms.2014.02.002
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Date of first compliant deposit:	30 December 2015
Date of first compliant Open Access:	30 December 2015
Funder:	China. Guo jia ke xue ji shu bu [Ministry of Science and Technology] (CMST), Marie Skłodowska-Curie actions, Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC)
Grant number:	2014CB046901 (CMST), 294976 (MSCa), 11ZR1438700 (NNSC), 51025932, 51179128

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