SLURRY TRENCH WALL DESIGN CONSTRUCTION AND PERFORMANCE

The planning and execution is described of a project utilizing the slurry trench construction technique which consists of excavation and construction in fluid-filled trenches. The trench stability is maintained by keeping the trench full of viscous slurry during excavation. After excavation, the slurry is displaced by concrete or backfill, depending upon the purpose of the wall. In this project, the soldier pile-tremie concrete wall (SPTC) was designed using cast-in-place concrete with steel reinforcing cages. The structural design utilized the fixed earth method as modified by Anderson. The design called for a 24- inch thick wall with 19.5-foot wide panels, and specified concrete having a 28-day compressive strength of 4,000 psi, a 6 to 8-inch slump, and a maximum stone size of 3/4-inch. The tie backs were soil-supported and installed at 30 degrees with the horizontal. The details are described of the site preparation, panel excavation, and panel construction. The load test procedure and quality control are described, as well as the retention system monitoring program. Discussion of the wall and tie-back performance covers movement during wall performance, horizontal wall movement, vertical movement, exterior settlement, and tie-back loads.

• Corporate Authors:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • BROWN, R E
• Publication Date: 1976-12

Media Info

• Features: Figures;
• Pagination: p. 17-43
• Serial:
  • Highway Focus
  • Volume: 8
  • Issue Number: 4

Subject/Index Terms

• TRT Terms: Construction; Load tests; Monitoring; Performance; Quality control; Slurry trenches; Support piles; Tiebacks; Tremie concrete; Walls
• Old TRIS Terms: Slurry trench construction
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00148212
• Record Type: Publication
• Files: TRIS, USDOT
• Created Date: Mar 15 1977 12:00AM