AN ELASTO-VISCOPLASTIC CONSTITUTIVE MODEL FOR CLAY AND FEM ANALYSIS OF THE TIME-DEPENDANT BEHAVIOUR OF CLAY DEPOSITS IN TUNNELLING. NUMERICAL MODELS IN GEOMECHANICS. NUMOG III. PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM HELD IN NIAGARA FALLS, CANADA, 8-11 MAY 1989

This paper describes the elasto-viscoplastic finite element analysis of the deformation of soft clay deposits associated with shield tunneling. By introducing the concept of volumetric softening, the elasto-viscoplastic constitutive model is extended to describe the effect of the destructuralization of natural clay structures. Numerical results show the effectiveness of the proposed method. For the covering abstract of this conference see IRRD 824029.

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• Corporate Authors:

  Elsevier Science Publishers

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• Authors:
  • Adachi, T
  • HIRATA, T
  • HASHIMOTO, T
  • Oka, F
  • Mimura, M
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 593-607
• Serial:
  • Publication of: Elsevier Applied Science Publishers Limited
  • Publisher: Elsevier Science Publishers

Subject/Index Terms

• TRT Terms: Clay; Conferences; Consolidation; Deformation; Elasticity (Mechanics); Excavation; Excavations; Finite element method; Grout; Mathematical analysis; Mathematical models; Plasticity; Pore water pressures; Shielding (Tunneling); Soft soils; Softening point; Soil stabilization; Time; Tunnels
• Subject Areas: Bridges and other structures; Geotechnology;

Filing Info

• Accession Number: 00497966
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 1-85166-425-4
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM