TUNNELLING IN SOILS - GROUND MOVEMENTS, AND DAMAGE TO BUILDINGS

Tunnelling through soils results in ground loss, causing surface settlements and transverse movements. When the tunnel drive passes below an existing structure, it is important to estimate the effects upon the structure. However, the Greenfield deformations should not simply be imposed upon a structure, because the structure contributes to a stiffening of the ground. A computational three dimensional soil-structure interaction analysis is required, to obtain detailed stress-deformation response of the influence of tunnel construction on existing buildings. As an example, the case of the CAIRO metro tunnel is analysed. The numerical simulations presented here take into account the physics of the problem: face supporting, over cut and conical shape of the machine, the injection of grout in the annular void and its consolidation. After a precise description of the principles of excavation process simulation, the authors analyse not only the effect of final settlements on the existing buildings but also the stress induced in the structures during the passage of the tunnel boring machine.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/3000091696
• Corporate Authors:

  Swiss Federal Institute of Technology Zurich

  Institute for Geotechnical Engineering
  Zurich,   Switzerland  8093
• Authors:
  • Dias, D
  • Kastner, R
• Conference:
  • Planning and Engineering for the Cities of Tomorrow. Second International Conference on Soil Structure Interaction in Urban Civil Engineering
  • Location: Zurich, Switzerland
  • Date: 2002-3-7 to 2002-3-8
• Publication Date: 2002

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 249-253

Subject/Index Terms

• TRT Terms: Commercial buildings; Deformation; Grouting; Settlement (Structures); Simulation; Soil structure interaction; Stresses; Subways; Tunneling; Tunneling machines; Urban areas
• Uncontrolled Terms: Externally imposed ground movements
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Public Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00930486
• Record Type: Publication
• ISBN: 3000091696
• Files: TRIS
• Created Date: Sep 5 2002 12:00AM