PERFORMANCE DURING CONSTRUCTION OF A CUT-AND-COVER TUNNEL FOUNDED IN LONDON CLAY AT EDMONTON

Field instrumentation was installed to investigate the performance of the diaphragm walls of Fore Street Tunnel at Edmonton. The tunnel was founded in over-consolidated clay and constructed top down with an integral roof and carriageway prop slab. Field observations of wall movements and bending moments, loads and moments in the props, and vertical streses in the clay beneath the carriageway prop slab were taken at the various construction stages. The measured values were compared with those predicted from finite element analysis using a soil model based on the Mohr-Coulomb yield criterion. The measured and predicted loads and moments in the structural members were also compared with those which would be determined using current design procedures. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09684107
• Corporate Authors:

  TRL

  Crowthorne House, Nine Mile Ride
  Wokingham, Berkshire  United Kingdom  RG40 3GA
• Authors:
  • CARDER, D R
  • BARKER, K J
  • EASTON, M R
• Publication Date: 1999-2

Language

• English

Media Info

• Features: References;
• Pagination: 26 p.
• Serial:
  • TRL REPORT 379
  • Publisher: TRL
  • ISSN: 0968-4107

Subject/Index Terms

• TRT Terms: Clay; Cut and cover tunneling; Durability; Finite element method; Loads; Measurement; Motion; Slurry trenches; Tunnels
• Geographic Terms: United Kingdom
• ITRD Terms: 4177: Clay; 3395: Cut and cover; 5910: Durability; 6490: Finite element method; 5567: Load; 6136: Measurement; 5483: Movement; 3358: Slurry trench wall; 3374: Tunnel; 8119: United Kingdom
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 00761792
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Apr 15 1999 12:00AM