If an existing retaining wall is failing we may be required to install double corrosion protected ground anchors, extending back into stable ground and grouted in place prior to any cyclic acceptance testing. Depending on their design length, these may take the form of mono bar or multi strand anchors, increasing the wall’s ability to resist failing by overturning.
When a retaining wall suffers from bulging and cracking, it may require crack injection and stitching, followed by the installation of support beams or walings, either in steel or reinforced concrete. Where the entire wall is failing, we would overclad the existing with steel reinforced sprayed concrete to improve structural integrity and dissipate loads from the tie-back anchors.
Reinforced earth walls are adaptable to local changes in ground conditions and have been clad with local stone facings to retain character of the area. CAN also installs a range of conventional modular gravity walls utilising rock filled gabion baskets and timber crib.
For all retaining wall options, CAN offers a fully indemnified in-house design capability, coupled with independent Category 3 checks where appropriate.