Publication details for Professor Ashraf OsmanOsman, A. S., Mair, R. J. & Bolton, M. D. (2006). On the kinematics of 2D tunnel collapse in undrained clay. Géotechnique 56(9): 585-595.
- Publication type: Journal Article
- ISSN/ISBN: 0016-8505, 1751-7656
- DOI: 10.1680/geot.2006.56.9.585
- Keywords: Clays, Deformation, Plasticity, Theoretical analysis, Tunnels.
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
A kinematic plastic solution has been developed for
ground movements around a shallow, unlined tunnel
embedded within an undrained clay layer. In this solution,
the pattern of deformation around the tunnel is
idealised by a simple plastic deformation mechanism.
Within the boundaries of the deformation mechanism,
the soil is required to shear compatibly and continuously
with no relative sliding at the boundaries. The soil is
regarded here as a rigid plastic (Tresca) material. The
plausibility of the proposed mechanism is demonstrated
by comparison with limit analysis calculations and centrifuge
Attewell, P. B. (1978). Ground movements caused by tunneling in
soil. Proceedings of the international conference on large movements
and structures (ed. J. D. Geddes), pp. 812–948. London:
Broms, B. B. & Bennermark, H. (1967). Stability of clay in vertical
openings. J. Soil Mech. Found. Div. ASCE 193, No. SMl,
Chen, W. F. (1975). Limit analysis and soil plasticity, Developments
in Geotechnical Engineering, 7. Amsterdam: Elsevier.
Clough, G. W. & Schmidt, B. (1981). Design and performance of
excavations and tunnels in soft clay. In Soft clay engineering
(eds E. W. Brand and R. P. Brenner), pp. 569–634. Amsterdam:
Davis, E. H., Gunn, M. J., Mair, R. J. & Seneviratne, H. N. (1980).
The stability of shallow tunnels and underground openings in
cohesive material. Ge´otechnique 30, No. 4, 397–416.
Drucker, D. C., Greenberg, H. J. & Prager, W. (1952). Extended
limit design theorems for continuous media. Q. Appl. Math. 9,
No. 4, 381–389.
Mair, R. J. (1979). Centrifugal modelling of tunnel construction in
soft clay. PhD thesis, University of Cambridge.
Mair, R. J. (1993). Developments in geotechnical engineering
research: applications to tunnels and deep excavations. Unwin
Memorial Lecture 1992. Proc. Inst. Civ. Engrs Civ. Engng 97,
No. 1, 27–41.
Mair, R. J. & Taylor, R. N. (1997). Bored tunnelling in urban
environment. Proc. 14th Int. Conf. Soil Mech. Found. Engng,
Hamburg 4, 2353–2385.
Mair, R. J., Taylor, R. N. & Bracegirdle, A. (1993). Subsurface
settlement profiles above tunnels in clays. Ge´otechnique 43, No.
Peck, R. B. (1969). Deep excavations and tunnelling in soft ground.
Proc. 7th Int. Conf. Soil Mech., Mexico City 3, 225–290.
Rankin, W. J. (1988). Ground movements resulting from urban
tunnelling. Proceedings of the conference on engineering geology
of underground movements, Nottingham, pp. 79–92.
Sloan A. W. & Assadi A. (1993). Stability of shallow tunnels in
soft ground. In Predictive soil mechanics, Proceedings of the
Wroth Memorial Symposium (eds G. T. Houlsby and A. N.
Schofield), pp. 644–663. London: Thomas Telford.