Ultra-high hybrid wire and concrete-faced mechanically stabilized earth bridge abutments

Hybrid Reinforced Earth abutments support a two-span highway bridge crossing a mine haul road in Arizona, USA. Concrete abutments were physically impractical and economically impossible at this 24m height, while a four-span bridge would have required massive, expensive earthmoving. Bridge loads are supported by spread footings bearing on the Reinforced Earth backfill. The superstructure's adjacent 1.4m deep precast box girders have an asphalt wearing surface, making the bridge easy to disassemble when the highway is relocated after the 10 year life of the mine. These unique abutments have a hydrid facing of Reinforced Earth precast concrete panels and TerraTrel galvanized wire mesh facing, all connected to galvanized steel strip reinforcements. Exposed to impact, the lower 9m has 180mm thick precast facing. The upper 15m, with TerraTrel wire facing, directly supports the abutment footings. This hybrid Reinforced Earth design using TerraTrel solved an otherwise economically unsolvable problem. For the covering abstract see ITRD E125786.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9026518641
• Authors:
  • OCHIAI, H (
  • OTANI, J (
  • YASUFUKU, N (
  • OMINE, K (
  • TRUONG, K M
  • BERKEBILE, M J
  • GLADSTONE, R A
• Publication Date: 2001

Language

• English

Media Info

• Pagination: 477-81
• Serial:
  • LANDMARKS IN EARTH REINFORCEMENT. PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON EARTH REINFORCEMENT HELD JAPAN, NOVEMBER 2001
  • Volume: 1
  • Publisher: SWETS & ZEITLINGER B.V.

Subject/Index Terms

• TRT Terms: Box girders; Bridges; Conferences; Construction; Design; Embankments; Precast concrete; Reinforcing materials; Retaining walls; Soils
• ITRD Terms: 3474: Box girder; 3455: Bridge; 8525: Conference; 3655: Construction; 9011: Design (overall design); 2801: Embankment; 4792: Precast concrete; 3471: Reinforcement (in mater); 3359: Retaining wall; 4156: Soil
• Subject Areas: Bridges and other structures; Construction; Design; Geotechnology; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01012283
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-265-1864-1
• Files: ITRD
• Created Date: Dec 20 2005 3:21PM