Zipper Geo Associates

Geotechnical and Environmental Consulting

ZIPPER GEO CAREERS
  • Expertise
    • Geotechnical Consulting
    • Geotechnical Design
    • Environmental Consulting
    • Construction Services
  • Projects
  • People
  • About
    • The ZipperGeo Advantage
  • Areas We Serve
    • Washington
    • Montana
  • Contact

Soldier Pile Wall Failure – Issaquah, WA

PROJECT: Soldier Pile Wall Failure – Issaquah, Washington

EXPERTISE: Geotechnical Forensic Investigation, Solider Pile Retaining Walls, Overly Consolidated Fractured Clay, Global Stability Analysis, Horizontal Sand Drains, Micro Piles, Tie Backs, Anchor Testing

In March of 2014, ZGA was contacted to conduct an emergency evaluation of an apparently failing solider pile retaining wall. We were informed that wedge plates, which hold tieback anchors in tension, were apparently launching off the wall an impacting an adjacent apartment complex. Our initial evaluation determined that 38 of the wall’s 78 tieback anchors were experiencing failure at the connection point between the tieback anchors and steel soldier pile beams. Initial observations also indicated the tops of the solider piles had experienced up to 8 inches of lateral deformation! ZGA worked in conjunction with a local structural engineering firm and contractor to quickly develop emergency repair recommendations. The emergency repair consisted of splicing new tieback strands on to the failed anchors and restressing. The emergency repair stabilized the wall. Once the wall was stabilized, we continued work with the structural engineering firm to develop a permanent stabilization solution. Construction of the permanent solution was completed in March of 2016. 

Previous project
Next project

Zipper Geo Associates, LLC
Reducing the risks our clients face underground

A King County Certified Small Contractor

COMPANY

Our Services

Our Projects

Our People

About Zipper Geo

Careers

LOCATIONS

Washington
19019 36th Avenue West, Suite E
Lynnwood, Washington 98036
(425) 582-9928

Montana
805 24th Street West, Suite 8F
Billings, Montana  59102
406-534-4914

 

CONNECT

LinkedIn

© 2023 Zipper Geo Associates, LLC | Geotechnical and Environmental Consulting | Contact Us