Back Analysis of Rock Tunnel Using Boundary Element Method
Publication: Journal of Geotechnical Engineering
Volume 115, Issue 8
Abstract
A boundary element method is presented for the ``back analysis'' of convergence measurements and measurements of the stress tangential to the tunnel circumference in an unlined tunnel following its excavation. When measurements are made of tunnel convergence between three points on the tunnel circumference and tangential stress at two points on the tunnel circumference, this method enables estimates to be made of (1); The modulus of elasticity of the rock mass; (2) the Poisson's ratio of the rock mass; and (3) the initial stress field in the vicinity of the tunnel.
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References
1.
Crouch, S. L., and Starfield, A. M. (1983). Boundary element methods in solid mechanics. George Allen & Unwin Ltd., London, England.
2.
Gioda, G., and Maier, G. (1980). “Direct search solution of an inverse problem in elastoplasticity: identification of cohesion, friction angle, and in situ stress by pressure tunnel test.” Int. J. Numerical & Anal. Methods Engrg., 15(7), 1823–1848.
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Sakurai, S. (1974), “Determination of initial stresses and mechanical properties of viscoelastic underground medium.” Proc. of 3d ISRM Cong., Denver, Colo., II‐B, 1169–1174.
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Sakurai, S., and Takeuchi, K. (1983). “Back analysis of measured displacements of tunnels.” Rock Mech. and Rock Engrg., 16(3), 173–180.
5.
Shimizu, N., and Sakurai, S. (1983). “Application of boundary element method for back analysis associated with tunnelling problems.” Proc. of 5th Int. Conf. on Boundary Element Methods, Hiroshima, Japan, Nov., 645–654.
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Published In
Journal of Geotechnical Engineering
Volume 115 • Issue 8 • August 1989
Pages: 1163 - 1169
Copyright
Copyright © 1989 ASCE.
History
Published online: Aug 1, 1989
Published in print: Aug 1989
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