UNSATURATED FLOW AND DEFORMATION PATTERN IN TUNNELLING THROUGH SWELLING ROCK
When tunnelling through swelling rock, relevant deformations occur only in the tunnel floor. This phenomenon is here numerically modelled as a coupled hydraulic-mechanical process. The observed absence of swelling deformations at the tunnel walls and the crown can be explained as a consequence of varying hydraulic boundary conditions along the excavation boundary. The paper focuses on the importance of unsaturated seepage flow. According to the numerical results, the nonlinearity of the unsaturated flow equations has a decisive qualitative influence on the predicted deformation field. (A) For the covering abstract see IRRD 881647.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9054105836
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Corporate Authors:
AA Balkema
P.O. Box 1675
Rotterdam, Netherlands BR-3000 -
Authors:
- Anagnostou, G
- Conference:
- Publication Date: 1995
Language
- English
Media Info
- Features: References;
- Pagination: p. 1041-8
Subject/Index Terms
- TRT Terms: Clay; Conferences; Deformation; Flow; Fluid dynamics; Hydraulic properties; Mathematical models; Percent saturation; Rocks; Seepage; Swelling soils; Tunnels
- ITRD Terms: 4177: Clay; 8525: Conference; 5595: Deformation; 5907: Degree of saturation (mater); 5430: Flow (fluid); 4748: Hydraulic properties; 6473: Mathematical model; 4154: Rock; 4315: Seepage; 5203: Swelling (soil); 3374: Tunnel
- Subject Areas: Bridges and other structures; Data and Information Technology; Geotechnology; Hydraulics and Hydrology;
Filing Info
- Accession Number: 00729161
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 90-5410-583-6
- Files: ITRD
- Created Date: Dec 12 1996 12:00AM