A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A geogrid-reinforced segmental retaining wall (SRW) was constructed to maximize traffic and turnaround space at a truck transfer operation. The maximum wall height was 9.1 m. Geogrid reinforcement and commercially available segmental retaining wall blocks were installed as part of the initial site development. After the wall was installed a rainfall event caused the wall to become unstable, with a portion of the wall collapsing into the detention basin. Fascia distress caused the owner to become concerned with the overall stability of the structure. Investigation of the retaining wall revealed the structure had the potential for continued instability problems. Additionally, it was determined that the wall was built at the wrong location, 1.8 m closer to the building than shown on the plan, making it difficult for vehicles to turn around. To overcome these difficulties the segmental retaining wall had to be reconstructed. The option to construct a new wall in front of the existing wall was used, rather than tear out and replace the existing wall. The replacement system consisted of Landmark block units connected to both soil tieback anchors and geosynthetic reinforcement for soil stability. In this article the design considerations and the installation procedures are presented.
A geogrid-reinforced segmental retaining wall (SRW) was constructed to maximize traffic and turnaround space at a truck transfer operation. The maximum wall height was 9.1 m. Geogrid reinforcement and commercially available segmental retaining wall blocks were installed as part of the initial site development. After the wall was installed a rainfall event caused the wall to become unstable, with a portion of the wall collapsing into the detention basin. Fascia distress caused the owner to become concerned with the overall stability of the structure. Investigation of the retaining wall revealed the structure had the potential for continued instability problems. Additionally, it was determined that the wall was built at the wrong location, 1.8 m closer to the building than shown on the plan, making it difficult for vehicles to turn around. To overcome these difficulties the segmental retaining wall had to be reconstructed. The option to construct a new wall in front of the existing wall was used, rather than tear out and replace the existing wall. The replacement system consisted of Landmark block units connected to both soil tieback anchors and geosynthetic reinforcement for soil stability. In this article the design considerations and the installation procedures are presented.
Replacing a troubled SRW
Ersetzen einer fehlerhaften Stützmauer
Paulson, J.N. (author)
2002
4 Seiten, 5 Bilder
Article (Journal)
English
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