Platipus Ground Anchors and Helibeam Installed to Leaning Retaining Wall

posted in Case Study

Defect

ASRS Ltd were contacted to provide a specification to stabilise a retaining wall at a large commercial building, where cracking and leaning had occurred. We specified the installation of Platipus ground anchors in conjunction with the Helibeam system to reinstate the structural integrity of the long section and flank section of the wall.

Prior to starting the works we installed a test anchor to determine the suitability of the S08 Platipus ground anchor. We also required drainage and service plans behind the wall.

Project Solution

Long Section:

We installed 9 No. Platipus S08 lateral restraint ground anchors with 8mm stainless steel wire tendon, driven to 4m or refusal, terminated onto 200mm dia square load plates with 8mm stainless steel wedge grip set on the face of the wall. In addition we also installed 4 No. twin bands of Helibar 60 stainless steel bed joint reinforcing, positioned horizontally to distribute the structural loads, returned to the right flank section of the wall.

Right flank wall section:

We installed 5 No. Platipus S08 lateral restraint ground anchors with 8mm stainless steel wire tendon, driven to 4m or refusal, terminated onto 200mm dia square load plates with 8mm stainless steel wedge grip set on the face of the wall. We also installed 4 No. twin bands of Helibar 60 stainless steel bed joint reinforcing, positioned horizontally to distribute the structural loads, returned to the long section of the wall.

Completion

We finished by raking out all existing cracks and injecting with thixotropic cementitious grout. We made good all areas of mortar disturbed by our installation. We completed the repairs on time and within budget to the client’s satisfaction.

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